Continuation of last post Population and Genetics 3 questions

1) In guinea pigs, the allele for black coat color (B) is dominant over the allele for white coat color (b). In an ideal mouse population exhibiting Hardy–Weinberg equilibrium of 31 guinea pigs, 2 are homozygous dominant, 11 are heterozygous, and 18 are homozygous recessive.

What is the frequency of the recessive allele in the population?


a. 0.76

b. 0.88

c. 0.64

d. 0.12






2) A population of 500 individuals has 231 homozygous dominant individuals, 218 heterozygotes, and 51 homozygous recessive individuals.

Determine the number of dominant alleles and frequency of the recessive allele, respectively.

a. Number of Dominant Alleles               Frequency of Recessive Alleles
                        680                                                               0.32

b. Number of Dominant Alleles                Frequency of Recessive Alleles
                      684                                                                0.10

c. Number of Dominant Alleles                Frequency of Recessive Alleles
                     450                                                                  0.32

d. Number of Dominant Alleles               Frequency of Recessive Alleles
                        450                                                              0.10




3) Which of the following populations is most likely in Hardy–Weinberg equilibrium?


a. Northern pike in Pigeon Lake.

b. A population of E. coli bacteria in which some individuals are demonstrating resistance to penicillin.

c. Japanese carp found in a man-made pond on Prince's Island in Calgary.

d. The Covid-19 virus, including the Delta and Omicron variants.