1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Brrunno [24]
3 years ago
9

one gene in a population of snails determines whether they are poisonous. being poisonous (P) is dominant over not being poisono

us (p) when you count a sample of 200 snails, 8 are not poisonous. what are the allele frequencies of the parent population
Biology
1 answer:
Harlamova29_29 [7]3 years ago
7 0

Answer:

F (pp) = 0.04

F (Pp) = 0.32

F (PP) = 0.64

Explanation:

Studying population genetics, we used the Hardy-Weinberg equilibrium model. In the case of snails, the H-W principle predicts that the total number of cases in the population should follow the following equation: PP + 2.Pp + pp = 200.

If a population has 200 snails and 8 are affected by a recessive condition, we have 4% affected, or 0.04.

This means that 0.04 corresponds to p², and p corresponds to 0.2.

Therefore, P is equal to 0.8 because p + P = 1.

Knowing the allele frequencies, we go to the frequency of the genotypes.

F (pp) = p² = 0.04 = 8 snails

F (Pp) = 2.Pp = 0.32 = 64 snails

F (PP) = P² = 0.64 = 128 snails

You might be interested in
Science fusion grade 7 lesson 1 review
dem82 [27]

4) The simplest type of response is a direct one-to-one stimulus-response reaction. A change in the environment is the stimulus; the reaction of the organism to it is the response. In single-celled organisms, the response is the result of a property of the cell fluid called irritability.

5) During meiosis, the cells needed for sexual reproduction divide to produce new cells called gametes. Gametes contain half as many chromosomes as the other cells in the organism, and each gamete is genetically unique because the DNA of the parent cell is shuffled before the cell divides.

6)Producers can make their own food by capturing the sun's energy, but consumers and decomposes can't. Consumers need to eat other organisms to obtain energy. Decomposes are like the recycles of nature. They obtain energy for their own needs while returning simple molecules to the environment.

7)The birds are growing up into a larger bird.

8) Cells manage a wide range of functions in their tiny package growing, moving, housekeeping, and so on and most of those functions require energy. But how do cells get this energy in the first place? And how do they use it in the most efficient manner possible?

9)Aside from the fact that fish,and trees can be aged in similar ways (by counting annual growth rings), new research shows that all three also respond to climate change in similar ways.


10)No we will not be able to survive cause there is no food or water and it is only oxygen of course you will be able to breathe but not eat or drink.


HOPE THIS HELPS

7 0
3 years ago
Chromosomes other than sex cells are known as
lapo4ka [179]
<span>The answer is autosomes.

</span>In a human diploid somatic cell (2n), there are 22 chromosomes present in two copies and 1 pair of sex chromosomes. This means there are 23 pairs of chromosomes - 22 pairs of autosomes and 1 pair of sex chromosomes. <span>There are in total 46 chromosomes (23 pairs in 2 copies: 23 × 2 = 46).</span>
6 0
3 years ago
Read 2 more answers
Glucose is classified as a
vivado [14]
B-monomer I am not sure about the second one but i think it's C
4 0
2 years ago
A man with normal vision marries a color-blind woman. Red-green color blindness is an X- linked recessive disorder. They have a
jeyben [28]

Answer: The probability is 100%.

Explanation: The chromosome X is related to gender. A man carries two different chromosomes (XY) and a woman carries two similar chromosomes (XX). The offspring of a couple will inherited:

  • If it is a boy, he inherites the chromosome Y from his father and X from his mother;
  • If it a girl, she inherites X from her father and X from her mother;

In the question, the woman is color-blind, which means she carries the recessive alleles: X^{d}X^{d}

The man, on the other hand, is normal, so his X-linked genotype will be: X^{D}Y.

Now, since they have a daughter, she inherited her double X from each of her parents, which means she inherited one X^{d} from her mother and one X^{D} from her father.

So, the daughter's genotype can only be heterozygotic  X^{D}X^{d} in other words, the probability is 100%.

5 0
3 years ago
5. Florence Griffith-Joyner set the women's world record for running 200.0m in 1988. At the 1988
Margaret [11]

Answer:

176.8

Explanation:

200/21.34

4 0
3 years ago
Other questions:
  • Explain how microorganisms are useful to us in daily life.
    7·2 answers
  • This is a trait that can be seen in an individual
    6·1 answer
  • The active site of an enzyme is the region that The active site of an enzyme is the region that binds allosteric regulators of t
    14·1 answer
  • In the three domain system the domain eukarya consists of all organisms that have which of the following
    9·2 answers
  • Carbon dioxide diffuses into the ocean carbon cycle via the air-sea surface exchange. Molecules of CO2 enter the ocean by diffus
    12·1 answer
  • As an anthropometric term, __________ is a straight line, point-to-point horizontal measurement running fore-aft the body.
    15·1 answer
  • What role does the MutL protein play in DNA repair? (5 POINTS) It performs a proofreading function, similar to DNA polymerase, a
    8·1 answer
  • Which of the following statements about an energy pyramid is NOT correct?
    11·1 answer
  • Living things that use energy
    8·1 answer
  • In multicellular organism the energy is stored in the body in the form of _____ carbohydrate fats glycogen protein
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!