Botany-(general)
NEET Botany (general) MCQ Question
Type: MCQ-numerical-Hard-Class 12
In a monohybrid cross between two heterozygous tall plants (Tt), what is the probability that a randomly selected tall offspring is homozygous tall (TT)?
A
1/3
B
1/2
C
1/4
D
2/3
Correct Answer
Option A
Detailed Explanation
From the Punnett square for a Tt x Tt cross, 3/4 of the offspring are tall (TT or Tt). Among these, 1/3 are TT (homozygous tall) and 2/3 are Tt (heterozygous tall), given that the total tall plants are TT and Tt.
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