There is a population of 135 deer Some of the deer in the po

There is a population of 135 deer. Some of the deer in the population are albino which is a rare genetically inherited trait that is only expressed in the phenotype of the homozygous recessive individuals (aa). The phenotype of albinism is represented by a deficiency of skin and hair pogment melanin resulting in white hair and skin. In this population, 35 of the deer are albino and 7.5% of the 135 are heterozygous.

What are the expected genetyope frequencies if the population is not evolving? Show workd for full credit.

What is the chi squared statistic?

Solution

since 35 out of 135 deer are albino , therefore frequency of q^2 = 35/135 , i.e. 0.25

therefore q = 0.5 since p+q = 1, therefore p = 0.5

7.5% of 135 is 10 heterozygous individuals.

the expected genotype frequencies would be as follows:

p^2 = 0.25 , q^2 = 0.25 , 2pq = 0.5

the chi square statistic would be as follows:

the total chi square observed is 0.

the degree of freedom is 2-1 = 1.

therefore, there is no significant difference between the two.