AIPMT Prelims 2004 Botany Trihybrid Cross MCQ Question with Solution

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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