AP BIOLOGY

EVOLUTION

HARDY WEINBERG EQUILIBRIUM

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
If brown fur color is dominant to gray in mice and you have 168 brown mice in a population of 200, what is the predicted frequency of heterozygotes?
A
0.84
B
0.16
C
0.4
D
0.36
E
0.48
Explanation: 

Detailed explanation-1: -Answer and Explanation: If 72 out of 200 individuals in the animal population are homozygous recessive, 48% of the population would be heterozygotes, and 16% would be homozygous dominant.

Detailed explanation-2: -So, the correct answer is ‘0.64’

Detailed explanation-3: -Now we know both of the alleles’ frequencies within this population, and we can use these values to find the frequency of heterozygotes. Thus, we can say that 42% of this population will be more resistant to malaria due to being carriers of the sickle-cell allele.

Detailed explanation-4: -Brown fur (B) in mice is dominant over white fur (bb). You have two brown mice, and when they are bred together you obtain 3 brown-haired offspring and one white-haired offspring.

There is 1 question to complete.