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kondor19780726 [428]
3 years ago
9

A large population of butterflies lives in southeastern Asia. About half have spots and half don’t. In 1995, a rare viral illnes

s was introduced to the population, and there was no cure. More spotted butterflies than un-spotted butterflies were killed by the illness, although the fact that they had spots had no bearing on their risk for illness. Which evolutionary mechanism is this an example of?
A)Genetic drift
B)Geographic isolation
C)DNA mutations
D)Reproductive isolation
Biology
1 answer:
max2010maxim [7]3 years ago
6 0

Answer:

a

Explanation:

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Complete question:

A sample of butterflies contained 50% yellow-winged individuals and 50% black-winged individuals. In this species, wing color is determined by a single gene with two alleles, and the allele for black is dominant. Which of the following statements about the allele frequencies in the sample would most likely be true?  Do not assume that this sample was obtained from a population in genetic equilibrium.

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d)The allele frequencies of black and yellow are equal.

e) The allele frequency of black is greater than the allele frequency of yellow.

2.Now assume that the population of butterflies sampled in question above is in Hardy-Weinberg equilibrium. Also assume that the sample is random and large enough that the allele frequencies in the sample equal the allele frequencies in the population.  What is the frequency of the allele for a) yellow wings in the population? Assuming Hardy-Weinberg equilibrium in question 1, what would the correct answer be and why?

Answer:

  • a)The frequency of the yellow allele is greater than that of the black allele.
  • f(b) = q = 0.71

Explanation:

Due to technical problems, you will find the complete explanation in the attached files

Download pdf
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