Question

Match the genetic phenomena with their respective ratios

$\begin{array}{cccc}\text{A}.& \text{Inhibitory gene ratio}& \text{1}& \text{9 : 3 : 4}\\ \text{B}.& \text{Complementary gene ratio}& \text{2}& \text{1:1:1:1}\\ \text{C}.& \text{Recessive epistasis ration}& \text{3}& \text{12:3:1}\\ \text{D}& \text{Dihybrid test cross ratio}& \text{4}& \text{12:3}\\ \text{E}.& \text{Dominant epistasis ratio}& \text{5}& \text{9:7}\end{array}$

• A. a – 5, b–4, c–3, d–2, e–1
• B. a–4, b–5, c–1, d–2, e–3
• C. a –1, b–2, c–4, d–3, e–5
• D. a–2, b–1, c–4, d–5, e–3

Answer 1

The correct option is B

a–4, b–5, c–1, d–2, e–3

Inhibitory gene ratio – 12 : 3

Complementary gene ratio – 9 : 7

Recessive epistasis ratio - 9 : 3 : 4

Di-hybrid test cross ratio - 1 : 1 : 1 : 1

Dominant epistasis ratio – 12 : 3 : 1