Study the following genotypes of individuals in a population for a specific genetic trait. The trait is determined by a single gene with two alleles, A and a.
Individual 1: AA
Individual 2: Aa
Individual 3: Aa
Individual 4: aa
Individual 5: AA
Based on the given data, what is the frequency of the A allele in this population?
A) 0.2
B) 0.8
C) 1.0
D) 0.4
E) 0.6
IMAT 2023 · Question 20
Q20 - Population genetics and Hardy-Weinberg
Pinned
The correct answer is E) 0.6.
Count alleles, not people. Five individuals have 10 alleles between them.
A alleles: AA (2) + Aa (1) + Aa (1) + aa (0) + AA (2) = 6
Frequency of A = 6/10 = 0.6
(And a = 4/10 = 0.4, which adds up to 1 as it should.)
Replies 0
No other replies yet.
Log in to reply.