Question

In a population of plants, the allele for long stems (S) is completely dominant over the allele for short stems (s). If 35% of the population has short stems, calculate the percentage of the population that is expected to be heterozygous (Ss)

48 percent

59 percent

41 percent

17 percent

Answer 1

PLEASE HELP <3 :)

Answer 2

we need to use p+q=1 and \(p^2+2pq+q^2\)

we say that S=p and s=q

short stems are \(ss\), so \(q^2\)=35%=0.35

then q=\(\sqrt{0.35}=0.592\)

using the original equation p+q=1, p=1-0.592=0.408

so, the heterozygotes are 2pq=2(0.408)(0.592)=0.483=48.3% are heterozygotes

Answer 3

Its 48