Short hair length in cats is an autosomal recessive trat determined by a single

Question

Short hair length in cats is an autosomal recessive trat determined by a single gene with two alleles, L and I. Suppose that the allele frequencies in a population of cats are f(L) = .5 and f(I) =. 5

1. Assume that this population is in Hardy-Weinberg equilibrium. Which combination(s) of genotype frequencies is/are possible in this population?

a. f(LL) = .5, f(LI) = 0, f(II) = .5

b. (fLL) = 0, f(LI)=1, f(II) = 0

c. f(LL)= .25, f(LI) = .5, f(II) = .25

d. all of the above

e. none of the above

2. Now, stop assuming that the population is in Hardy-Weinberg equilibrium. Which combination of genotype frequencies is/are possible in this popluation?

a. f(LL) = .5, f(LI) = 0, f(II) = .5

b. f(LL) = 0, f(LI)= 1, f(II) = 0

c. f(LL)= .25, f(LI) = .5, f(II) = .25

d. all of the above

e. none of the above

Explanation / Answer

a. f(LL) = .5, f(LI) = 0, f(II) = .5

Hardy and Weinberg mathematically proved that in a population, all dominant and recessive alleles comprise all alleles for that gene.

This was mathematically represented as p+ q = 1.0

Where,

p = frequency of dominant alleles

q = frequency of recessive alleles.

2. c. f(LL)= .25, f(LI) = .5, f(II) = .25

Related Questions

Navigate

• Browse (All)
• Browse S
• Subjects

Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.