Question

Refer to the figure and give answer


If A = Normal allele and a = Albino allele then genotypes of father and mother are respectively

• A. Aa and Aa
• B. AA and Aa
• C. Aa and AA
• D. Aa and aa

Answer 1

The correct option is A Aa and Aa

Albinism is an autosomal recessive disease. Reproduction between Aa and Aa will result in 1 Homozygous normal (AA), 2 Heterozygous normal (Aa) and 1 Albino child (aa).
$\begin{array}{ccc}\text{Male}\downarrow /\text{Female}\to & \text{A}& \text{a}\\ \text{A}& \text{AA; Homozygous Normal}& \text{Aa; Heterozygous Normal}\\ \text{a}& \text{Aa; Heterozygous Normal}& \text{Aa; Albino}\end{array}$