Question

need help please on part a and b

1. You are studying the nesting behavior of an unusual species of bird in the Solomon Islands. You discover that baby birds exist in two color morphs, grey or yellow on the island of Choiseul. You estimate that the population includes 263 yellow baby birds and 413 grey baby birds (676 total). You don't have a genome for this species so you aren't sure about the genetic basis of color but you assume that color is controlled by two alleles at a single locus. a. There is no difference between yellow and grey baby birds once they have matured but yellow baby birds have a higher risk of predation. If 303 grey babies survive to adulthood, but only 150 yellow ones do, calculate the fitness of the yellow phenotype relative to the grey one. For this this question assumes grey is dominant b. Now calculate the mean fitness for the population. Use that to predict the effect of selection on the next generation. (Hint: You need to calculate the fitness of each genotype and then average them to find the average fitness. To determine the effect of selection, calculate the predicted genotype frequency for each genotype and then adjust for fitness. For example: (p.p* relative fitness of p/ average fitness for the population.] MacBook

Answer 1

Ans. Fitness of yollow birdsd phenotype 0.77

Mean fitness 0.88

(a) Yollow biods Golay birds 413 263 303 Population of Swerere Survival reate y • Relative fitness 57.03 73.36 0.77 Fitness of yallow phenotype 0.77 Mean fitness of the population : the population = (0.77 ) 6.885 In the effect of selection Yollow bird sweriral rate aeduce then gray bided neat generation