what is significance of crossing over during meiosis?
Answer:
A- a different combination of genes is provided to each gamete
Explanation:
Crossing over accounts for genetic variation, because due to the swapping of genetic material during crossing over, the chromatids held together by the centromere are no longer identical
Which process initiates the passage of half of a parent’s DNA to offspring?
Answer:
The process of male and female gamete is called as fertilization. It is the process which initiates that transfer of half of the chromosome from each parent namely father and mother. The chromosome number of body cell is 46, whereas that of germ cell is 23 chromosomes.
Explanation:
I just don't know what each one is
Stimulus: Ca2+ ion levels in blood are too low
•Sensor: •Control center:
•Effector and action(s):
•Negative feedback:
•Stimulus: Ca2+ ion levels in blood are too high
•Sensor:
•Control center:
•Effector and action(s):
•Negative feedback:
Why do cells need glucose?
Answer:
Red blood cells rely on glucose for energy and convert glucose to lactate. The brain uses glucose and ketone bodies for energy. Adipose tissue uses fatty acids and glucose for energy. The liver primarily uses fatty acid oxidation for energy. hopes this helps
What occurs during glycolysis?
Answer:
Glycolysis is the process in which one glucose molecule is broken down to form two molecules of pyruvic acid science my fav class btw thats how i know it
Explanation:
Put the phases of cell division (sex cells ) in order there are 12
Answer:
Prophase I, prometaphase, metaphase I, anaphase I, telophase I, and cytokinesis, interphase, prophase II, prometaphase II, metaphase II, anaphase II, telophase II, and cytokinesis.
Explanation:
Prophase I, prometaphase, metaphase I, anaphase I, telophase I, and cytokinesis, interphase, prophase II, prometaphase II, metaphase II, anaphase II, telophase II, and cytokinesis are the 12 phases of cell division that occurs in the sex cells of human body. These double phases allow the sex cells to produce four daughter cells from a single parent cell but the chromosomes number is half in each daughter cell.
Which type of cell is capable of making its own sugars
Answer:
In a plant cell, chloroplast makes sugar during the process of photosynthesis converting light energy into chemical energy stored in glucose
Explanation:
I hope that helps
Someone please help!
The picture below shows a model of the human digestive tract.
Which of the following best describes the purpose of this model?
to show how organs in the digestive tract are compressed by contracting muscles
to show the parts of the digestive tract without having to use real organs
A
B
to show how microscopic molecules flow through the digestive tract
D
to show the function of one organ in the digestive tract in isolation
Answer:
to show the function of one organ in the digestive tract in isolation
4. Cross a white bull with a white cow. Show the Punnett Square:
% Red Cow
% Roan Cow
% White Cow
Answer:
100% white cow
Explanation:
This question involves a single gene coding for skin color in cattle. The allele for red color (R) is codominant with the allele for white color (r). Hence, the roan cattle (Rr) will possess both red and white coloration.
According to this question, a white bull (rr) is crossed with a white cow (rr). Each parent will produce the "r" gamete, which when used in a punnet square will produce all WHITE COWS i.e 100% white cows. See punnet square attached.
Answer:
white cow
Explanation:
Is meiosis sexual reproduction or asexual?
Answer:
Sexual reproduction
Answer:
Meiosis is sexual reproduction.
Explanation:
Meiosis only occurs in reproductive cells, as the goal is to create haploid gametes that will be used in fertilization. Meiosis is important to, but not the same as, sexual reproduction. Meiosis is necessary for sexual reproduction to occur, as it results in the formation of gametes (sperm and eggs).
MARK ME BRAINLIEST.
The fluid mosaic model of the membrane proposed that membranes
Answer:
constant of protein hope it helps you
Earliest eon of the earth's history
A. Cenozoic Era
B. Precambrian
C. Trilobite
D. Mesozoic Era
Answer: the Mesozoic era came before the others however the accurate earliest eon is the Hadeon to be exact, but from the options you provided, answer it D.
Explanation:
An advertisement for a health supplement is being shown in a commercial explaining the benefits of increasing lean muscle, strengthen tendons, and ligaments. It also includes a fat burner that will increase the breakdown of triglycerides. Which two biomolecules are being discussed in this ad?
carbohydrates and lipids
lipids and nucleic acids
proteins and carbohydrates
proteins and lipids
Answer:
C. Proteins and carbohydrates
Lowest of low tides occur approximately how often?
Yellow seeds are dominant over green seeds. Two heterozygous yellow seeded pea plants are crossed. What percentage of the offspring will be yellow?
Answer:
Being A=yellow
the two partners have genotype Aa
The possible genotypes from the pinner's square are: AA, Aa, Aa, aa
The percentage of the offspring will be yellow is: 25%
why is there a need to protct our forests coral reefs and mangrove swamps?
Answer:
If we don't protect our forests, they get either get burned or cut down so that people can build more places or more space for crops. If we have little forest, there will be little oxygen in the air and we will die, global warming will also increase. Coral reefs are meant to protect the sea from inhumane acts which pollute the sea and cause marine animals to die, if they die the sea will be very polluted and marine animals might become extinct. Mangrove swamps are a habitat to many different animals, if they are gone the animals will have no habitat to live in and might soon face the consequences of extinction.
what kingdom does eubacteria belong to
Answer:
Like archaebacteria, eubacteria are complex and single celled. Most bacteria are in the EUBACTERIA kingdom. They are the kinds found everywhere and are the ones people are most familiar with. Eubacteria are classified in their own kingdom because their chemical makeup is different.
Explanation:
What is the function of the hydrogen bonds?
Answer:
ambot
Explanation:
pag answer ug imo kay wla ko kabalo
what are the possible stages of HIV infection? (choose all that apply)
•Clinical Latency
•AIDS
•Acute Infection
•Antiretroviral therapy
Answer:
- Acute Infection
- Clinical Latency
- AIDS
Hope this helps <3
3. What did Darwin conclude was the reason the Galapagos finches had different shapes and styles of beaks
Answer:
Charles Darwin had concluded that these birds had somehow evolved to adapt based on the island they were on. Each island had different food sources so if these finches wanted to survive they had to change. Each finch adapted to their environment due to forcefully evolving to survive.
Explanation:
what feature of the red blood cells aloows for the determination of ABO blood types and Rh factors?
Answer:
ABO Typing
Explanation:
The test to determine your blood group is called ABO typing.
The presence or absence of the antigens A and B determines ABO blood types and Rh factors.
What is Antigen?This is defined as any substance that causes your immune system to produce antibodies against it.
Determination of ABO blood types and Rh factors is a result of the presence or absence of the antigens A and B found on the surface of red blood cells.
Read more about Antigens here https://brainly.com/question/905225
When an organism has two alleles at a particular locus that are different, then the organism is called what?
Purebred
Dominant
Heterozygous
Recessive
Answer:
Heterozygous
Explanation:
The graph presents information about the climate of Dallas, Texas.
A graph shows average monthly precipitation and temperature for Dallas, Texas. Temperatures rise from January to July and drop between August and December. Precipitation increases from January to May, decreases in June, July, and August, increases again in September and October, and decreases again in November and December.
Which of the following best describes this climate?
A. warm temperatures and rainy weather all year long
B. warm summers, cold winters, seasonal precipitation
C. seasonal temperatures, little precipitation
D. warm, wet summers; cold, dry winters
Answer:
B
Explanation:
The statement that best describes the circumstance of this given climate is as follows:
Warm summers, Cold winters, and Seasonal precipitation.Thus, the correct option for this question is B.
What is Climate?Climate may be defined as a type of weather conditions that are persuading in any geographical location for a long period of time. In a more simple sense, it is characterized as the long-term pattern of weather in a particular area.
According to the context of this question, the duration between January to July illustrates the rising of temperature which means warm summer.
The duration between August and December, the temperature falls down consistently and gradually which means cold winters.
The months of January to May and September and October represent seasonal precipitation. According to the graph, it understands that the monsoon season comes twice a year with high precipitation.
Therefore, the correct option for this question is B.
To learn more about Climate, refer to the link:
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YO PLZ HELP ME!!!
The ____________________ endoplasmic reticulum has a role in transporting proteins to different compartments in the cell.
Answer:
The rough endoplasmic reticulum works with the Golgi apparatus to move new proteins to their proper destinations in the cell. The membrane of the RER is continuous with the outer layer of the nuclear envelope. Smooth endoplasmic reticulum does not have any ribosomes attached to it, and so it has a smooth appearance.
Explanation:
The rough endoplasmic reticulum has a role in transporting proteins to different compartments in the cell.
What is Protein transporting?Protein transporting may be defined as a process through which proteins are transported from one cellular organelle to another after being synthesized in the rough endoplasmic reticulum along with the Golgi complex.
Due to having ribosomes on their surface, the rough endoplasmic reticulum is known as the site of protein synthesis. Due to the presence of ribosomes, their surface is not as smooth as compared to the smooth endoplasmic reticulum.
The protein after synthesis packed into the spherical-shaped vesicles which are then fused with the membrane of a specific cell organelle in order to function properly.
Therefore, the rough endoplasmic reticulum has a role in transporting proteins to different compartments in the cell.
To learn more about Rough endoplasmic reticulum, refer to the link:
https://brainly.com/question/1995143
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Where are chromosomes found in the human body what are chromosomes made of
Answer:
Chromosomes are thread-like structures located inside the nucleus of animal and plant cells. Each chromosome is made of protein and a single molecule of deoxyribonucleic acid (DNA). Passed from parents to offspring, DNA contains the specific instructions that make each type of living creature unique.
Describe 3 pieces of evidense that you could use to support the theory of evolution
Answer: yes the person above me is totally wrong and is not an animal lover report her answer.
Explanation: bye babes mwhaaa ;)
please help. only answer if u know please. i will love u forever
First question: When the population of lynx increases, the population of hares will decrease due to being over-hunted by more predators than usual. The hare is a source of food to the lynx, so with more lynx's...less hares... and less hares means either less food for the lynx and their population starts to die off...OR... The lynx adapt and start hunting new animals which could cause a massive disruption in the food chain.
Second question: When the number of hares increase in the environment it would mean more food for the lynx and other predatory animals. But with more food, comes more overpopulation. with plenty to eat the lynx population increases and that could cause problems for the environment, and other creatures.
Damage to the brain can sometimes occur as the result of an accident.
State the part of the brain labeled A and suggest a problem that may be
experienced by a person who has damage to that part of the brain.
Answer:
A traumatic brain injury interferes with the way the brain normally works. When nerve cells in the brain are damaged, they can no longer send information to each other in the normal way. This causes changes in the person's behavior and abilities. The injury may cause different problems, depending upon which parts of the brain were damaged most.
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What is digestion? Compare and Contrast monogastric and ruminant digestion. Which animals are ruminants and which are monogastric? What organs do ruminants have to help them digest? What chemical compound can ruminants digest that ruminants cannot?
What organs do birds like chickens have and why? What is unique about a horse's digestion
Answer:
Liver
Explanation:
what is
Meiosis and Mitosis
Answer:
mitosis is part of a cell that splits in 2 to make two new nuclei. Meiosis is the special cell division of sexual reproduction, like sperm and egg cells
Explanation: