Answers
Answer:
the answer is B. Antigenic drift
Related Questions
LIMITED TIME!!! HELP FAST!!!
Which statement is most consistent with the theory of natural
selection?
Select one:
Organisms that are best suited to survive will pass their traits to
their offspring.
Different species breed with each other to produce offspring with
new helpful characteristics.
Changes in the environment cause mutations that help
organisms.
Organisms learn to adapt to changes in their environment in order
to survive.
Answers
Answer:
Organisms that are best suited to survive will pass their traits to their offspring.
HELP PLEASE Part 1: Between the
moon and Earth, which has a higher maximum surface temperature?
Part 2: Using complete sentences, explain the reason for this.
Answers
The Moon has essentially little atmosphere, thus it cannot retain heat or act as a surface insulator. The Moon's surface reaches 127°C in full sunlight, which is far over the boiling point of water.
What is the surface with the highest temperature?The record for the world's warmest air is held by Death Valley: Temperatures in the California desert's appropriately called Furnace Creek region on July 10th, 1913, soared to a scorching 56.7°C.
What is the moon's surface temperature at its highest?The lunar equator has hot days with temperatures of 250 degrees Fahrenheit 120 degrees Celsius, and cold nights with temperatures of -208 degrees Fahrenheit -130 degrees Celsius, or 140 K.
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For each of the following genes, classify whether it regularly exists in a hemizygous state.
Answers
A person who is hemizygous has one member of a chromosomal pair or chromosome segment instead of the typical two. When a guy has just one X chromosome, hemizygosity is frequently used to characterize X-linked genes.
In somatic cell genetics, where cancer cell lines are frequently hemizygous for certain alleles or chromosomal areas, this word is occasionally employed. On the X chromosome of a typical male human is a color-blindness gene that is consistently hemizygous. For instance, a transgenic gene was only introduced into one mouse chromosome. If there is a color blindness gene on the X chromosome in a typical female person, it is not usually hemizygous. Suppose a person with Down-syndrome carries a gene on chromosome 21.
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PLEASE HELP!!!
A person without the allele for sickle cell anemia has children with a person who is a carrier for sickle cell anemia but doesn’t have the disease. What percentage of their children will have sickle cell anemia? What percentage of their children will be carriers for sickle cell anemia? Show your work with a Punnett square. You can copy/paste the blank table below or create a table in the submission box to complete the Punnett square.
Answers
Answer:
Percentage kid will have sickle cell anemia: 0%
Percentage kid will be carriers for sickle cell anemia: 50%
Explanation:
Parents: SS and Ss
Kid possibilities: SS, SS, Ss, and Ss for the 4 boxes of the Punnet Square
Which statement best describes the elements that make up living cells?
O They are primarily composed of oxygen and nitrogen.
O They are composed in equal parts of all elements.
O They are mainly composed of trace elements, such as zinc.
O They are primarily composed of a few key elements.
Answers
'They are primarily composed of a few key elements' best describes the elements that make up living cells.
What do you mean by cells?
Cells are the basic structural and functional units of life. They are the smallest units of living matter and are composed of various molecules and organelles that carry out specific functions. All living organisms are composed of cells, and all cells come from pre-existing cells.
Living cells are complex structures that are composed of a variety of different components, including proteins, carbohydrates, lipids, nucleic acids, and other molecules. These components work together to provide the cell with energy, structure, and the ability to reproduce and respond to its environment. The few key elements that make up living cells are vital for cell function and are essential for life.
Hence, Option D is correct.
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hurrrrrrrrrryyyyyyyyyy!!!! 100 pointsssssssssss
Write an argumentative report (4-5 paragraphs long) that describes the impact humans have on the environment. Assume your audience is the general public, and your goal is to convince them to make positive changes. Be sure to also research and include details of what actions humans can take to affect positive change for the environment. Support your argument and suggestions for change with evidence from the Internet sources you have read and viewed. You do not need to use all the sources, only the ones that most effectively and credibly support your position and your calls for change.
Answers
Answer:
Explanation:
Humans have had a significant impact on the environment in recent times, and it is essential that we take immediate action to make positive changes to protect our planet. The burning of fossil fuels, deforestation, and the overuse of natural resources have led to increased carbon emissions, air and water pollution, and the destruction of habitats for wildlife. Climate change, caused by human activities, is causing sea levels to rise, extreme weather events to occur more frequently, and is affecting the biodiversity of our planet.
One of the most significant actions humans can take to affect positive change for the environment is to reduce our carbon footprint. This can be achieved by using renewable energy sources, such as solar and wind power, instead of fossil fuels. Additionally, individuals can reduce their carbon footprint by using public transportation, carpooling, or biking instead of driving, and by using energy-efficient appliances and light bulbs. According to the United Nations Framework Convention on Climate Change, if we act now, we can still limit the global temperature increase to 1.5°C, thus avoiding the worst consequences of climate change.
Another way humans can make a positive impact on the environment is by reducing our consumption of meat and dairy. Agriculture is one of the leading causes of deforestation and water pollution. According to the World Wildlife Fund, if we all reduce our meat consumption by 50%, we could prevent the extinction of several species, increase food security, and reduce greenhouse gas emissions.
Lastly, humans can make a positive impact by supporting companies that prioritize the environment and sustainability. Consumers have the power to vote with their dollars and support environmentally friendly products and companies. They can also advocate for more environmentally friendly policies and regulations, and support conservation efforts such as reforestation and habitat restoration.
In conclusion, humans have had a significant impact on the environment, and it is essential that we take immediate action to make positive changes to protect our planet. By reducing our carbon footprint, reducing our consumption of meat and dairy, and supporting environmentally friendly companies and policies, we can make a positive impact on the environment. It's time for us to take responsibility for our actions and make the necessary changes to protect our planet for future generations.
Based on the evolutionary tree of the three domains, which of the following is true? O All three domains have common ancestor O Domain Bacteria and domain Eukarya are more closely related each other Ihan domain Archaea O The Eukarya have emelned the same throughout evolutionary Lime O All three domains zquolly (ela120 another O The Eukerye are the common ancesiors inree damains
Answers
Based on the evolutionary tree of the three domains, all three domains have a common ancestor is true. Studies of molecular biology, as well as phylogenetic analysis, have shown that all three domains of life (Bacteria, Archaea, and Eukarya) share a common ancestor. However, the relationships between the three domains are still being studied and debated, so it is not clear which of the other statements are true.
All three domains of life (Bacteria, Archaea, and Eukarya) share a common ancestor. This is supported by molecular biology and phylogenetic analysis, which have shown that the three domains are related through evolution. However, the exact relationships between the three domains are still being studied and debated.
while some studies suggest that Bacteria and Eukarya are more closely related to each other than either is to Archaea, others suggest that Archaea is more closely related to Eukarya.
Additionally, while Eukarya share a common ancestor, it is not clear if they have remained the same throughout evolutionary time or if the Eukarya are the common ancestor of the three domains.
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exogenous antigens are processed for immune recognition by ________ cells.
Answers
Dendritic and macrophage cells prepare exogenous antigens for immunological detection.
Why do T cells exist?one particular white blood cell. T cells are produced by bone marrow stem cells and are a component of the immune system. They aid in infection prevention and might aid in the fight against cancer. additionally known as T lymphocytes and thymocytes.
What is an exogenous antigen defined as?Foreign antigens are defined as those that exist in bodily fluids outside of cells. extracellular antigens. These invaders consist of bacteria and bacterial toxins, parasitic worms, pollen and dust that are inhaled, as well as viruses that have not yet infected a bodily cell. An exclusive subclass of cells known as antigen-presenting cells (APCs)
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• What are the major structures of the bone and their respective subcategories? Define each term into its common word parts. Write these word parts in sequence; use a slash when necessary to indicate a combining vowel. ○ Bursectomy ○ Osteochondroma ○ Osteomalacia ○ Periostitis ○ Tendonitis ○ Spondylosis
Answers
The major structures of the bone and their respective subcategories definitions are:
Bursectomy: "Burse" refers to a bursa, which is a fluid-filled sac that acts as a cushion between tendons, muscles, and bones. "Ectomy" means removal or excision. A bursectomy is the surgical removal of a bursa.
Osteochondroma: "Osteo" refers to bone, "chondro" refers to cartilage, and "oma" means tumor. An osteochondroma is a benign tumor that is made up of both bone and cartilage.
Osteomalacia: "Osteo" refers to bone and "malacia" means softening. Osteomalacia is a condition characterized by a softening of the bones, usually due to a deficiency of vitamin D.
Periostitis: "Peri" means around, "osteo" refers to bone and "itis" means inflammation. Periostitis is an inflammation of the periosteum, which is the membrane that surrounds the bone.
Tendonitis: "Tendo" refers to tendons and "itis" means inflammation. Tendonitis is an inflammation of a tendon, which is the fibrous tissue that connects muscle to bone.
Spondylosis: "Spondylo" means vertebrae, "osis" means condition or disease. Spondylosis is a condition characterized by degeneration of the vertebrae, often accompanied by formation of bone spurs.
What are bone?Bones are the hard, rigid structures that make up the skeletal system of the human body. They provide support, protection, and movement to the body. Bones are made up of several types of tissue, including:
Compact bone: This is the dense, hard outer layer of bone that makes up the majority of the bone's surface. It is composed mostly of calcium, phosphorus, and collagen.
Cancellous bone: This is the spongy, inner layer of bone that is found at the ends of long bones and in the vertebrae. It is composed mostly of calcium and phosphorus.
Note that Bone marrow: This is the soft, fatty tissue that is found in the center of most bones. It is responsible for producing blood cells.
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Which of the following processes will most likely occur when you transfer a bacterial culture from 37 degree C to 10 degree C? A.the bacteria will start synthesizing cholesterolB.the bacteria will remove cholesterol from their membranesC.the bacteria will reduce the number of unsaturated bonds in the fatty acid tails of their phospholipidsD.the bacteria will increase the synthesis of phospholipids with very long fatty acid tails and insert these into their membranesE.the bacteria will increase the synthesis of phospholipids with unsaturated fatty acid tails and insert these into their membranes
Answers
The answer is letter E, the bacteria will increase the synthesis of phospholipids with unsaturated fatty acid tails and insert these into their membranes.
Bacteria are capable of surviving different types of environments with varying temperatures. When it is exposed to a low temperature, as in the situation above (from 37 °C to 10 °C), it regulates its transition phase. Th cytoplasmic membrane of organisms plays a vital role when it comes to physiological environments.
When it comes to bacteria, their membrane is primarily composed of "phospholipids." It is said that the phospholipids with unsaturated fatty acids have a transition that is lower to that of phospholipids with saturated fatty acids when it comes to temperature.
Thus, the bacteria will have to increase the synthesis of phospholipids with unsaturated fatty acid tails and insert these into their membranes. This will help increase the membrane's fluidity, thus allowing it to survive in low temperatures.
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compared to bacteria, eukaryotic transcription is more complex because _____.
Answers
Compared to bacteria, eukaryotic transcription is more complex because eukaryotic cells have a distinct nucleus and multiple types of subcellular organelles, whereas bacteria do not.
In eukaryotic cells, the process of transcription occurs in the nucleus, whereas in bacteria it occurs in the cytoplasm. Additionally, eukaryotic cells have a far more complex system of gene regulation, involving multiple levels of control such as chromatin remodeling and post-transcriptional modifications, whereas bacteria typically have simpler mechanisms of regulation.
Furthermore, eukaryotic cells have multiple types of RNA polymerases, each responsible for transcribing different types of genes, and also eukaryotic cells have a more complex process of RNA processing and maturation, including alternative splicing, cap addition, and polyadenylation, which are not present in bacteria.
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match the phenotypes on the labels at left to the genotypes listed below. labels can be used once, more than once, or not at all. AaBbcc: albinoAAbbCc: agouti brownAaBBCC: agouti blackaaBbCc: solid color, blackAabbcc: albinoAABBcc: albino
Answers
A triploid plant is one with the genotype AaBbCc. A unique formula 2n is used to compute the total number of gametes produced by a specific genotype, where n= the number of heterogeneous alleles identified in the genotype.
A person's genotype is their unique DNA sequence. This phrase is used to describe to the two alleles that a person inherited for a certain gene. A patient's clinical presentation is the detectable expression of this genotype.
Earwax type, height, blood type, eye color, freckles, and hair color are examples of phenotypes in humans. And phenotypes are more than simply physical characteristics.
AaBbcc: albino
AAbbCc: agouti brown
AaBBCC: agouti black
aaBbCc: solid color, black
Aabbcc: albino
AABBcc: albino
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In humans, normal skin dominates albino skin; a cross between two albino people results in a) all albino. b) two normal and two albino. c) all normal: d) three albino and one normal:
Answers
Answer:
all albino
Explanation:
if normal dominates albino their genotypes would have to be aa since uppercase A is normal
so aa and aa would result in all kids being albino
If you had access to these scientists, what questions would you ask them in order to clarify evidence of the factors that have caused the rise in global temperatures over the past century? Write two questions using two different perspectives: one from a person who might be in agreement with the scientists and one who is skeptical of this court ruling and environmental activists around the world.
Answers
If you had access to these scientists, what questions would you ask them in order to clarify evidence of the factors that have caused the rise in global temperatures over the past century therefore the two questions which will be asked using two different perspectives include:
Are you sure this isn't part of a natural cycle?How is climate change affecting people? What is Climate change?This refers to the long-term shifts in temperatures and weather patterns caused by different factors such as global warming via emission of greenhouse gases.
The questions which would be asked from a person who might be in agreement with the scientists is how it affects the people for a clearer explanation on its effect.
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bioc 406 which of the following are metabolic strategies used to treat urea cycle disorders? 1. high protein diet 2. supplement diet with arginine 3. supplement with molecules like benzoate that promote metabolic reactions that utilize ammonia.
Answers
The following metabolic strategies used to treat urea cycle disorders are:
supplement diet with argininesupplement with molecules like benzoate that promote metabolic reactions that utilize ammoniaThe amino acid arginine has the chemical formula (H2N)(HN)CN(H)(CH2)3CH(NH2)CO2H). A guanidine group is attached to a typical amino acid framework in the molecule.
At physiological pH, the amino and guanidino groups are protonated and the carboxylic acid is deprotonated (CO2), resulting in a cation. There is just one l-arginine enantiomer naturally occurring. Proteins frequently contain Arg residues.
The codons CGU, CGC, CGA, CGG, AGA, and AGG are used to encode. The creation of nitric oxide begins with the guanidine group in arginine. It
is a solid that is white and water soluble like all amino acids.
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The following metabolic approaches are utilised to treat urea cycle disorders:
arginine supplement dietUse chemicals like benzoate to boost metabolic pathways that use ammonia.The molecular formula for arginine is (H2N)(HN)CN(H)(CH2)3CH(NH2)CO2H. In the molecule, a guanidine group is linked to a normal amino acid framework.
The amino and guanidino groups are protonated at physiological pH, whereas the carboxylic acid is deprotonated (CO2), resulting in a cation. There is only one l-arginine enantiomer found naturally. Arg residues are commonly found in proteins.
To encode, the codons CGU, CGC, CGA, CGG, AGA, and AGG are utilised. The guanidine group in arginine is the starting point for the formation of nitric oxide. It is a whitish solid that, like other amino acids, is water soluble.
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Bob discovered that he had high blood pressure, which was the result of years of poor
eating habits. Bob's company physician gave him a healthy diet to follow that would help
to lower his blood pressure naturally and economically but not create a mineral deficiency.
Which of the following statements is irrelevant to Bob's understanding of his new, healthy
diet?
A. A daily vitamin and mineral supplement is more important than a well-balanced diet.
B. Whole-wheat breads fortified with iron and calcium are better choices than white
breads.
S
C. Low-fat dairy products, green leafy vegetables, and tofu are good sources of
calcium.
D. Lean red meat, whole-grain cereals, and beans are valuable sources of iron.
E. The restriction of sodium-rich foods is essential in reducing the risk of heart
disease.
Answers
C. Low-fat dairy products, green leafy vegetables, and tofu are good sources of calcium.
Is it possible to suffer a stroke while sleeping?Background According to reports, 13% to 44% of all cerebrovascular accidents (CVAs) occur during sleeping. Snoring, sleep apnea, obesity, and daytime drowsiness, in addition to other well-known risk factors, have been proven to dramatically increase the risk of stroke.
A quiet stroke is one that does not create any visible symptoms. The majority of strokes are triggered by a clot in a blood artery in the brain. The obstruction prevents blood and oxygen from reaching that location, resulting in the death of adjacent brain cells.
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From some observations, a student noticed there are fruit flies flying around and
landing on a banana in the kitchen. The student wondered if a certain type of fruit
will attract more fruit flies than another. The student set up four jars of the exact
same size on the countertop in an area where the light remains the same. They
weighed the following fruits and placed 110 grams of each fruit into the jars:
banana, strawberry, peach, watermelon. The student had 4 vials of fruit flies (all
female, same species, same number) and placed each vial directly in front of jar. The
student asked a friend to take the cover off of two of the vials while they removed
the other covers simultaneously. An hour later the student recorded the number of
fruit flies in each jar and continued to record data every twelve hours for 5 days in a
row. In this experiment, what is the independent variable?
of fline in and what is the dependent variable and what is the controlled variable?
Answers
Answer:
.
Explanation:
The independent variable in this experiment is the type of fruit, the dependent variable is the number of fruit flies in each jar, and the controlled variables are the size of the jars, the light, the temperature, and the number of fruit flies used.
The independent variable is the factor that the experimenter changes, in this case, the type of fruit. The dependent variable is the factor that changes as a result of the independent variable, in this case, the number of fruit flies in each jar.
The controlled variables are the factors that remain constant throughout the experiment, such as the size of the jars, the light, the temperature, and the number of fruit flies used. This helps to ensure that any differences in the number of fruit flies between jars can be attributed solely to the type of fruit, rather than to any other factors.
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Which of the following are factors that influence human resources requirements? (Select all that apply.)
Answers
The following are factors that influence human resources requirements are retirements, customer needs for new products or services and promotions.
To determine the resources required to carry out the project's work, the project manager defines resource requirements. To define a resource demand, carry out the subsequent procedures. One or more jobs should be added to the work breakdown structure.
The exact skills or qualities required by the individuals who carry out the project's work are referred to as human resource requirements. A human resource requirement for a project like developing custom software is to have at least one individual who can create software.
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Following question may be like this:
(Which of the following are factors that influence human resources requirements? (select all that apply)
a. the external labor market
b. retirements
c. promotions
d. customer needs for new products or services)
Retirements, consumer requests for new goods or services, and promotions are all variables that impact human resource requirements.
The project manager specifies resource needs in order to identify the resources needed to complete the project's task. Execute the following processes to define a resource demand. One or more jobs should be added to the work breakdown structure.
Human resource needs are the specific talents or traits required by the personnel who carry out the project's job. A human resource need for a project like generating bespoke software is to have at least one employee who can design software.
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Complete question :
(Which of the following are factors that influence human resources requirements? (select all that apply)
a. the external labor market
b. retirements
c. promotions
d. customer needs for new products or services)
Which of the following is an aspect of asexual reproduction that is sometimes disadvantageous? O It allows animals that do not move around to produce offspring without finding mates. O It allows a population to expand quickly to exploit available resources. O It saves the time and energy of gamete production. O It produces genetically uniform populations. O It allows an animal to produce many offspring quickly.
Answers
O It allows an animal to produce many offspring quickly is an aspect of asexual reproduction that is sometimes disadvantageous.
This is a reference to the method through which living things give birth to their offspring. The two main methods of reproduction are sexual reproduction and asexual reproduction.In order to create their offspring, the male (Sperm) and female (Ovum) gametes must unite.In this method, a single parent participates in the development of the child.A benefit of asexual reproduction that sexual reproduction does not have is the quick rate of population growth of asexual organisms.Being unable to combine features from both parents is a drawback of asexual reproduction. Only one parent's DNA is present in an organism that is created through asexual reproduction. In actuality, the child's DNA is a perfect replica of its parent's. For the individual, this may be problematic.
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A nursing student was reading a case study about a patient being treated at a local hospital. The patient's charts included information about a tumor. If the tumor was diagnosed as a benign tumor. What additional information would support this claim?
A. The tumor remained in one location
B. The tumor impaired the function of neighboring organism
C. Tumore cells entered the blood and lymph vessels
D. New tumor formed all over the patient's body
Answers
Answer:
Additional information that would support the claim that the tumor is benign would be:
A. The tumor remained in one location
B. The tumor impaired the function of neighboring organism
Explanation:
Additional information that would support the claim that the tumor is benign would be:
A. The tumor remained in one location
B. The tumor impaired the function of neighboring organism
A benign tumor is a type of tumor that does not spread (metastasize) to other parts of the body and does not invade nearby tissue. They are typically not cancerous and are less likely to cause harm to the patient.
A characteristic of benign tumors is that they remain in one location and do not spread to other parts of the body. They also don't impair the function of neighboring organism.
Option C and D are characteristics of malignant tumors (cancerous) which are invasive and can spread to other parts of the body via the blood and lymph vessels, resulting in the formation of new tumors.
A plant is an organism that does what
Answers
Answer:
A plant is an organism that does the beautiful process of photosynthesis and gives out oxygen as a by-product of the reaction, which helps to breathe and be alive.
Explanation:
Which statement is an example of the "inheritance of acquired characteristics" misconception that was popular before Mendel's work?
A.
A curly-tailed dog and a straight-tailed dog will have curly-tailed offspring.
B.
A deer that has white spots will have offspring with white spots.
C.
A cat that has lost an ear will have offspring that are missing an ear.
D.
A brown horse and a white horse will have brown and white offspring.
Answers
The statement that depicts an example of "inheritance of acquired characteristics" misconception that was popular before Mendel's work is as follows: a cat that has lost an ear will have offspring that are missing an ear (option C).
What are acquired traits?Acquired traits are the character developed in an individual as a result of environmental influence. These traits are not coded by the DNA of a living organism and therefore cannot be passed on to future generations.
On the other hand, inherited traits are traits that are inherited from the parents to the offspring. Hair, skin, eye colour, body type, height, and susceptibility to certain diseases are some of the examples of inherited traits in humans.
However, prior to the work of Gregor Mendel, who is regarded as the Father of Genetics, there has been misconceptions that acquired traits can be inherited.
Example of an acquired trait that has caused this misconception is that a cat that has lost an ear will have offspring that are missing an ear.
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Even in cases of simple Mendelian inheritance within a population, the ratio of phenotypes of a specific character is rarely the same as the ratio of alleles for that character. Explain why these ratios differ.
Answers
Answer:
Even though the ratio of alleles for a specific character in a population is usually the same, the ratio of phenotypes of that character can differ due to the presence of multiple alleles of the same gene, dominance and recessiveness, and epistasis. In the case of multiple alleles, different alleles of the same gene can result in different phenotypes, so the ratio of phenotypes may not be the same as the ratio of alleles. Additionally, dominance and recessiveness can cause different alleles to result in the same phenotype, meaning the ratio of phenotypes may be different from the ratio of alleles. Finally, epistasis occurs when one gene affects the expression of another, which can also cause the ratio of phenotypes to differ from the ratio of alleles.
Explanation:
full answer was provided
Why do some scientific theories and hypotheses change over time?
O All of these choices are correct.
ONew scientific discoveries are made all the time.
As technology changes, scientists learn more about the world.
O Different cultural, religious, or personal biases may shape beliefs and findings.
Answers
Accepted theories may be modified or overturned as new evidence and perspective emerges. Scientists are likely to accept a new or modified theory if it explains everything the old theory did and more
What is Scientific theory ?Ideally, a scientific theory changes because new information arises that either discredits it or forces it to be modified to act as a better explanation. Some theories which seemed correct at the time are disproven by later findings with better, more accurate instruments.
As technology develops more data can be collected and new types of observations made. A hypothesis is a testable explanation of an observed event. New data that contradicts a hypothesis may lead to a new scientific explanation. The hypothesis is changed.
The power of a hypothesis test is affected by three factors.
Sample size (n). Other things being equal, the greater the sample size, the greater the power of the test.
Significance level (α). The lower the significance level, the lower the power of the test.
The "true" value of the parameter being tested.
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in your body, when energy is released from the breakdown of a molecule such as glucose,
Answers
By using controlled stepwise oxidation to break down glucose and other dietary components, chemical energy in the form of ATP and NADH is produced.
By creating the flimsy high-energy bonds that join phosphate groups to ADP molecules, some of the energy may be captured. Through a sequence of processes known as glycolysis, glucose is divided into two pyruvate molecules, each of which has three carbons. In the cytoplasm of the cell, glucose is converted to pyruvate. Pyruvate is converted into carbon dioxide and water upon entrance into the mitochondria. ATP receives its chemical potential energy. The majority of the carbohydrates in our diets are broken down by the body and turned into a sugar called glucose.
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which of the following modifications is not associated with changes in eukaryotic gene expression?
A. chromatin remodeling complexes
B. insertion of variant histones into nucleosomes
C. histone acetylation
D. DNA acetylation
Answers
DNA acetylation Chromatin remodeling also called as chromatin modification if the addition of specific chemical groups to the histone protein associated with chromatin.
Who discovered DNA?The molecule now known as DNA was first identified in the 1860s by a Swiss chemist called Johann Friedrich Miescher. Johann set out to research the key components of white blood cells?, part of our body's immune system.
How is DNA formed?Each molecule of DNA is a double helix formed from two complementary strands of nucleotides held together by hydrogen bonds between G-C and A-T base pairs. Duplication of the genetic information occurs by the use of one DNA strand as a template for formation of a complementary strand.
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30 POINTS!!! PLEASE HELP!!!
What happened in Egypt for the first time in 2012?
Question 4 options:
A. Free presidential elections were held.
B. Foreign occupying armies left the country.
C. Ships passed through the Suez Canal.
D. Cairo was named the capital.
Answers
Answer:
Welcome to Gboard clipboard, any text that you copy will be saved here.Touch and hold a clip to pin it. Unpinned clips will be deleted after 1 hour.Tap on a clip to paste it in the text box.
Answer: a
Explanation:
What are some solutions that you think will work to reduce our greenhouse emissions?
Answers
How does the mismatch repair pathway identify the incorrect base in E. coli?
The error is found on the DNA strand identified by the absence of nicks.
The error is found on the DNA strand identified by the presence of nicks.
The error is found on the methylated DNA strand.
The error is found on the unmethylated DNA strand.
Answers
The correct option (A) The error is found on the DNA strand identified by the absence of nicks.
How does E. coli mismatch correction work?The status of adenine methylation at d(GATC) sequences governs coli mismatch repair . Because this alteration happens after DNA synthesis, freshly produced DNA persists in an unaltered form for a brief period of time, and it is this brief lack of methylation that guides repair to the new strand.
What is the E coli repair system?In Escherichia coli, two-strand DNA damage is repaired by recombination with a homologous undamaged duplex, generally the sister chromosome, which is created largely during replication on a template DNA with one-strand damage.
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Compare and contrast passive and active immunity, covering at least 4 functions, components, or mechanisms related to immune response. Include at least 1 way in which they are similar and 1 way in which they are different.
Answers
Active immunity develops as a result of the body's own generation of antibodies, whereas passive immunity is a result of antibodies created outside the body and then brought into the body.
Which of the following best describes the differences between active and passive immunity?Both active and passive immunity exists. When our immune system actively defends us against a pathogen, we are said to have active immunity. When we receive immunity from another person, we are able to defend ourselves against a virus. This is a key distinction between the two types of immunity.
For instance, an infant acquires passive immunity when a mother's antibodies are transferred to her through the placenta or breast milk. Getting an injection of antibodies to fend against the effects of a toxin like a snake venom can also cause it.
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