In: Biology
Imagine a species of bison in which most individuals have a brown coat color, but some individuals have white coats. The coat phenotype is due to a single locus called C. The brown allele (C1) is dominant over the white allele (C2). The possible genotypes are: C1C1 à brown coat; C1C2 à brown coat; C2C2 à white coat. At this time, the population is in Hardy-Weinberg equilibrium. There are 450 bison in the population and 175 of them have white coats.
A. What are the allele frequencies? (2 pts) B. What are the genotype frequencies? (2 pts) C. Again, assuming Hardy Weinberg, what are the allele frequencies in the next generation of bunnies produced by these adult rabbits? (2 pt) D. Now assume that wolves who like to eat bison can spot the ones with white coats twice as easily as the brown ones (it is summer, not winter in North Dakota). If you start again with a population of 450 bison including 175 white ones and wolves eat 35 white, 20 heterozygous brown and 10 homozygous brown bison, then what are the genotype frequencies AFTER the wolves have their dinner? (2 pts) E. What are the allele frequencies in the gene pool of gametes produced by the survivors? (2 pt) D. What will be the allele frequencies in the population of baby bison produced in the next generations, assuming that the population is now is Hardy-Weinberg equilibrium (there was random mating and not predation on the babies, etc)(2pts)?
Answer-
A) Allele frequency of C1 = 0.376; C2 = 0.624
B) Genotype frequency of C1C1 = 0.1414; C1C2 = 0.469; C2C2 = 0.389
C) allelic freqency after 1 generation will be same.
D)Genotype frequency of remaining population is C1C1 = 0.14; C1C2 = 0.496; C2C2 = 0.364
The explanation is provided below: