Principles of Inheritance and Variation Question 67

67. On selfing a plant of $F_1$ generation with genotype “AABbCC”, the genotypic ratio in $F_2$ generation will be

[2002]

(a) $3: 1$

(b) $1: 2: 1$

(c) $9: 3: 3: 1$

(d) $27: 9: 9: 9: 3: 3: 3: 1$

Show Answer

Answer : b

Hints & Solution

(b) AABBCC - 1, AABbCC - 2, AAbbCC - 1 Genotypic ratio $=1: 2: 1$