Question

A dog breed has a pair of alleles that determine curly hair (

Answer 1

The hardy-weinberg equation is
p2 + 2pq + q2 = 1
where are already given with
c = 0.1 and C = 0.9
SO
p2 = 0.9^2
p2 = 0.81
q2 = 0.01
0.81 + 2pq - 0.01 = 1
2pq = 0.18
The answers are
CC = 0.81
cc = 0.01
Cc = 0.18

Answer 2

Dogs with genotype CC ⇒ 1, 1.0

Dogs with genotype Cc⇒ 20, 20.0

Dogs with genotype cc⇒ 89, 89.0