First slide

Inheritance of One Gene

Question

The phenotypic ratio of incomplete dominance in $F_{2}$ is

Easy

A

1:1
B

1:2:1
C

3:1
D

9:3:3:1

Solution

The phenotypic ratio of incomplete dominance in $F_{2}$ is 1:2:1. If we cross a white flowered (rr) of snapdragon with a red flowered (RR) one, then all the $F_{1}$ progenies will have pink flowers (Rr). When these plants are selfed we will get red, pink and white flowered plants in the ratio of 1:2:1.

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