Answer:
The amount of cholesterol in animal plasma membranes regulates the fluidity of the membrane and changes based on the temperature of the cell's environment. In other words, cholesterol acts as antifreeze in the cell membrane and is more abundant in animals that live in cold climates.
Hemophilia is an X-linked trait caused by the allele h. About 1 in 10,000 males (0.0001) has hemophilia. The frequency of the h allele in males is therefore
.
Answer : 0.0001
Explanation:
Since males only have 1 X chromosome, the number of males with h alleles should be equal to number of males with Haemophilia and therefore the frequency of males with Haemophilia must be equal to the frequency of h alleles on X chromosome.
Which of the following is true about respiration in plants? Question 3 options:
A. Plants do not respire.
B. Plants respire at night.
C. Plants respire all the time.
D. Whereas animals produce carbon dioxide, plants produce oxygen at the end of respiration.
Answer:
plants respire at night
I need help with dis plz!!the question dat says before
Answer:
c maybe lol
Explanation:
Answer: The information is halved
Explanation:
C
why is cooking faster with a pressure cooker
As the pot is heated, the temperature inside increases until the water starts to boil. ... At that pressure, water boils at 121°C (250°F). That means food can cook at a much higher temperature than it ever could at atmospheric pressure—and since cooking reactions speed up at higher temperatures, your food cooks faster.
In urban areas the food insecure families are those whose working members are generally employed in low paid occupations and casual labour market.
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Does the size of the vulva change by age or does it remains the same as it is since after birth?
Answer:
The shape and appearance of the vulva naturally change over the years.
Explanation:
The shape and appearance of the vulva naturally change over the years. The most obvious changes are linked to hormonal changes, occurring at puberty, during the menstrual cycle, in pregnancy and around menopause.
biology chapter 12 assessment
Answer:
what is the question so that I will solve it
Assume for the purposes of this problem that the order of and distances between three linked genes are the following: unc-32 10mu vab-7 20mu dpy-17 What is the probability of obtaining a phenotypic unc-32 vab-7 offspring from a cross between a heterozygous fly(unc-32 vab-7 dpy-17/ ) and the triple recessive nematode
From the distances between genes and their order, it is possible to get recombination frequencies per region (simple and double recombination frequencies). The probability of obtaining a unc-32 vab-7 + offspring is 0.09 = 9%.
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We are usually asked to get the order of genes in a chromosome. To do so, we need to get the distances between genes. And to get distances between genes, we need to get their recombination frequency.
When three genes are involved, we get the distances by taking the recombination frequency, P, per region.
We talk about regions, R, when we are making reference to the space between two genes.
Gene 1 -----(R1)----- Gene 2 --------(R2)------ Gene 3
P1 P2
P1 = recombination frequency between Gene 1 and Gene 2P2 = recombination frequency between Gene 2 and Gene 3⇒ P1 = (SR + DR) / N
⇒ P2 = (SR + DR)/ N
Where:
SR is the number of simple recombinants in each region, DR is the number of double recombinants in each region, and N is the total number of individuals.The genetic distance will result from multiplying that frequency by 100 and expressing it in map units (MU). One centiMorgan (cM) equals one map unit (MU).
In the exposed problem, we need to do the inverse way. We already have the order and distances between genes, and we need to get the recombination frequency, P.
We know that the order of genes is as follows,
unc-32 ------------- vab-7----------------- dpy-17
Distances are:
Region 1 = 10 MURegion 2 = 20 MUWe need to get the probability of obtaining a phenotypic unc-32 vab-7 + offspring from a cross between a heter0zyg0us fly (unc-32 vab-7 dpy-17/ + + + ) and the triple recessive nematode (unc-32 vab-7 dpy-17 / unc-32 vab-7 dpy-17).
Cross:
unc-32 vab-7 dpy-17 / + + + x unc-32 vab-7 dpy-17 / unc-32 vab-7 dpy-17
To get the genotype unc-32 vab-7 + , a simple recombination, SR, must occur in region 2.
So we need to get the simple recombination frequency in Region 2.
To do so, first we need to clear the following equation
Distance between vab-7 dpy-17 = P2 x 100 = 20 MU
20MU = P2 x 100
P2 = 20 / 100
P2 = 0.2
The recombination frequency in region 2 (P2) is 0.2.
Now, we need to get the simple recombination frequency in this region.
P2 = (SR + DR) / N
P2 = Simple recombinants Frequency + Double recombinants Frequency
R1 = 10 MUR2 = 20 MUDouble recombinants Frequency = 10% x 20% = 0.1 x 0.2 = 0.02P2 = Simple recombinants Frequency + Double recombinants Frequency
0.2 = Simple recombinants Frequency + 0.02
Clearing the equation,
Simple recombinants Frequency = 0.2 - 0.02 = 0.18
Simple recombinant frequency in region 2 will produce the following two chromosomes,
unc-32 vab-7 ++ + dpy-17So half of this frequency will produce one chromosome, and the other half will produce the other chromosome.
unc-32 vab-7 + ⇒ 0.09+ + dpy-17 ⇒ 0.09So, the probability of obtaining a phenotypic unc-32 vab-7 + offspring is 0.09 = 9%.
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You can learn more about recombination frequency at
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how is a snake biotic
Answer:
The term biotic factors refers to the way in which an organism -- such as a snake -- interacts with its environment or ecosystem. ... Biotic factors of snakes involve how they impact the necessary balances that make their ecosystem function, especially with regard to a snake's role as both predator and prey.
in metaphase what is missing from the cells and what happens to the chromosomes?
biết gen A quy định hat vàng trội hoàn toàn so với gen a quy định hạt xanh nằm trên NST thường . cho cây vàng tự thu phấn , kiểu gen con ra đời là gì
Answer:
YY là kiểu gen trội đồng hợp tử (2 alen Y). Kiểu hình của kiểu gen này có màu hạt vàng. Yy là kiểu gen dị hợp tử (một alen trội, một alen lặn). Kiểu hình của kiểu gen này có màu hạt vàng.
Explanation:
help.??????????????pls
Answer:
federalism............
In very extreme weather, the xylem cells are damaged as well. Describe how the plant is affected if the xylem is unable to function correctly.
Answer:
The plant will die
Explanation:
Xylem's job is to transport water and minerals from the soil to the parts of the plant. Without it the plant won't receive the required minerals and the plant will die.
what is the right hotspot please help
How does temperature affect the catalase enzyme
PLEASE HELP!!!!!! How many carbon dioxide (CO2) molecules are needed so there are enough Carbon atoms to make a glucose molecule?
Answer:
ok I know this is late and you probably don't need me anymore but the answer is 6
Explanation:
( love the pfp)
A disputed paternity case! Hermione’s new baby has a blood type of O. Her blood type is B and Ron Weasley is A. Harry Potter (blood type AB) insists he is the child’s father. CAN THIS BE TRUE???!
Answer:
No becuase one of the parents needs to have type O
Explanation:
No, this cant be true because in order for a child to have O blood type parents must have a recessive allele "[tex]i[/tex]".
What type of alleles are blood types?An allele is a particular form of genetic information that can be found in our DNA at a particular spot on a certain chromosome. This form of genetic information is known as an allele.
Codominant alleles in humans are responsible for determining blood types. There are three distinct alleles, and they are denoted by the letters IA, IB, and i. The IA and IB alleles both have co-dominant inheritance, but the i allele has a recessive inheritance pattern. Type A, type B, type AB, and type O are the four different human phenotypes that are possible for the blood group.
Therefore, in order for a child to have O blood type parents must have a recessive allele "[tex]i[/tex]"
Learn more about blood types, here:
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an extensive study was conducted on identical twins that were separated at birth. the study showed that the individual from each pair who recieved better nutritionduring childhood scored higher on standardized tests. this can best be described as an example of how
Answer:
why did they do it because its bad a
Argentine ants are an invasive pest and are abundant throughout Los Angeles, and many parts of the world. How might Argentine Ants disrupt the food web of birds feeding on insects found on trees
Answer: Argentine ants disrupt (or kill) insects on trees. That may carry up to influence birds.
Explanation:
Which one of the following organelles is a present only in plants?
—Golgi apparatus
—central vacuole
—mitochondria
How is a proton gradient formed across the inner mitochondrial membrane?
Answer:
Energy is released in these “downhill” electron transfers, and several of the protein complexes use the released energy to pump protons from the mitochondrial matrix to the intermembrane space, forming a proton gradient.
Explanation:
There are 100 ants in an ant farm that is 10 inches by 5 inches. What is the population 1 density? (Show your work)
The population density would be 2 ants/square inch
Population density is defined as the population size of a species of organism per unit area of the habitat occupied.
In this case, the population size of ants in the ant farm is 100 while the dimension of the ant farm is 10 inches by 5 inches.
Area of the ant farm = Length x breadth
= 10 x 5
= 50 square inch
Population density of ant = population size/area
= 100/50
= 2 ants/square inch
More on population density can be found here: https://brainly.com/question/16894337?referrer=searchResults
Choose. The correct answer
Answer:
1.d
2.b
3.a
4.d
5.c
6.b
7.d
8.c
9.a
10.c
Explanation:
hope it helps you ¯\_(ツ)_/¯
What's the scientific name of a leopard?
Answer:
Panthera pardus
Explanation:
leopard, (Panthera pardus), , also called panther, large cat closely related to the lion, tiger, and jaguar. (credit to brititanica articles)
1. In the digestive system, where are nutrients absorbed?
A: Small intestine
B: Large intestine
C: Or Liver
2. In the circulatory system, what type of vessels are able to exchange materials by passive transport?
A: Capillaries
B: Arteries
C: Veins
3. Which system controls all other organ systems?
A: Endocrine
B: Nervous
C: Respiratory
4. How does the integumentary system aid with homeostasis?
A: Controlling body temperature
B: Both A and B
C: Getting rid of excess salt through sweat
5. Which system is in charge of producing offspring?
A: Muscular
B: Urinary
C: Reproductive
6. Bones, cartilage and ligaments are all structures in what organ system?
A: Skeletal
B: Endocrine
C: Circulatory
7. Which of the following statements about the circulatory system is NOT true?
A: The liver is used to clean blood and remove any wastes and excess water/salts.
B: The endocrine system uses your blood to carry hormones around the body.
C: it delivers nutrients, gases and other materials throughout the body.
Answer:
1. Small intestine
2. A. Capillaries
3. B. Nervous system controls all other organ systems.
4. A. Controlling body temperature.
And hydration.
B. Producing sweat to regulate body temperature and get rid of waste.
5. C. Reproductive system.
6. Skeletal system
7. A
Explanation:
What happens if a cell is unable to divide by mitosis
Answer:
When this happens, sometimes the cell commits a special type death is called apoptosis. Apoptosis, otherwise known as programmed cell death, ensures that if mitosis goes wrong and cannot be fixed, the cell does not continue to divide, as this would lead to the production of mutant cells that might cause problems.
Explanation:
I also need help with dis plz?
geoligest in egypt and ethiopia are comparing rock samples from rocks founf in two contries
Which of the following IS NOT a model of motivation?
A. Self-actualization B. Cognitive
C. Expectancyvalue D. Psychoanalytical
Positive reinforcement is not a component of expectancy model of motivation. Positive reinforcement can be defined as giving something to the subject when they perform the desired action so they associate the action and do it more often and hence, positive reinforcement is not related to expectancy model of motivation.
An internal act or process that aids the individual conduct to achieve the purpose. The model of motivation includes the strategies, goals, and influences that lead the person to follow the decisions.
The following is not the model of motivation:
Option D. Psychoanalytical
Model of motivation can be explained as:
Self-actualization is the realization of potentials and talents possessed by individuals.The conscious intellectual activity is called cognitive and affects motivation.The attitude of individuals towards the action and problems are called expectancy values.Therefore, psychoanalytical is not a model of motivation.
To learn more about models of motivation follow the link:
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How are the seeds shown in the pictures spread?
Answer:
Seeds can be dispersed away from the parent plant individually or collectively, as well as dispersed in both space and time. ... There are five main modes of seed dispersal: gravity, wind, ballistic, water, and by animals.
Explanation:
because it is
Is a scorpion a keystone species
Answer:
Keystone Species: Kangaroo Rat Keystone species are species whose presence and role within an ecosystem has a disproportionate effect on other organisms within the system. Hawk (predator)/lizard (prey). scorpion (predator)/insect (prey). if their is no relationship between these two then the scorpions will die off and the insects will thrive.
Explanation:
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