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Home Q & A Board Biology-Related Homework Help General Biology
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rrahall rrahall
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9 years ago
if a geneticist finds 25% of a population to be phenotypic recessive for a trait, he can predict reasonably that

a) 75% are homozygous for the dominant trait
b) 75% are heterozygous
c) 100% of the population carry the recessive allele
d) 50% are heterozygous
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wrote...
#1
9 years ago
It will be that 75% are homozygous for the dominant train. Homozygous simply refers to having matching alleles for a single trait and some of its related terms include allele, and genes.
wrote...
#2
Educator
9 years ago
25% Rightwards Arrow 0.25

q^2 = 0.25
q = SQRT(0.25)
q = 0.5

1 - 0.5 = 0.5 = p

0.5^2 = 0.25 Rightwards Arrow 25% of the population is homozygous dominant too.

2*0.5*0.5 = 0.5 Rightwards Arrow 50% is heterozygous, so the answer is D.
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