Botany-Mendel's Laws
NEET Botany Mendel's Laws MCQ Question
Type: MCQ-numerical-Medium-Class 12
In a monohybrid cross between two heterozygous tall plants (Tt), what is the probability of obtaining a homozygous tall (TT) offspring?
A
25%
B
50%
C
75%
D
100%
Correct Answer
Option A
Detailed Explanation
The probability of obtaining a homozygous tall (TT) offspring in a monohybrid cross of Tt x Tt is 1/4, which is 25%, as shown by the expansion (1/2T + 1/2t)^2 = 1/4 TT + 1/2 Tt + 1/4 tt.
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