Assume that the flower population described in the previous probl...

Question

Assume that the flower population described in the previous problem undergoes a different pattern of predation. Flower-color determination and the starting frequencies of C₁ and C₂ are as described above, but the new insects attack yellow and red flowers, not orange flowers. As a result of the predation pattern, the relative fitness values are C₁C₁ = 0.40, C₁C₂ = 1.0, and C₂C₂ = 0.80.

What are the equilibrium allele frequencies in the predation environment?

Accepted Answer

Hello everyone and welcome to today's video. So an autosomal recessive disease has a frequency of 10 in 1000 in the population. So assuming the Hardy Weinberg principle need to calculate the frequency of the dominant as answer to is A, we have 0.1 as answer choice B we have 0.3 as answer choice C we have 0.6 and as answer choice D we have 0.9. Now, in order to solve this problem, we need to understand something. This is an out so more recessive disease. So the frequency that we are given is going to be the frequency of the recessive genotype in the population, which in the Hardy Weinberg equation is given by Q square. So Q square is going to be equal to 10 over 1000, which is the same as saying one over 100. Now, if we want to obtain the frequency of the recessive A in the population, not the genotype. But the, all, all we need to do is find the square root of both of these sites. So if you find the square root of Q square, we're going to obtain Q And if we find the square root of one over 100 we're going to obtain 0.1. So Q is equal to 0.1. Now we know from the Hardy Weinberg equation that P or the frequency of the dominant AO that we are looking for plus Q, which we found to be 0.1 is going to be equal to one. So if we need to determine P to solve this problem, all we need to do is here, solve for P P is going to be equal to one minus Q P is going to be equal to one minus 0.1 P is going to be equal to 0.9. So the frequency of this dominant is 0.9 or 90% in the population. So the correct answer for this question is the 0.9. I really hope this helped you and I hope to see you on the next video.

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