AIPMT PRELIMS2004Botany-Genetics
AIPMT PRELIMS 2004 Botany Trihybrid Cross MCQ Question
Type: MCQ-conceptual-Medium-Class 12
A self-fertilizing trihybrid plant forms :-
A
4 different gametes and 16 different zygotes
B
8 different gametes and 16 different zygotes
C
8 different gametes and 32 different zygotes
D
8 different gametes and 64 different zygotes
Correct Answer
Option B
Detailed Explanation
A trihybrid plant with three heterozygous gene pairs can produce 2³ = 8 different gametes. Each gamete can combine with 8 different gametes to form 8 x 8 = 64 different zygotes.
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