Botany-Incomplete Dominance
NEET Botany Incomplete Dominance MCQ Question
Type: MCQ-numerical-Medium-Class 12
In Mendel's experiments, if T represents the dominant allele for tallness and t represents the recessive allele for dwarfness, what is the probability of obtaining a dwarf plant in the F2 generation from a monohybrid cross?
A
25%
B
50%
C
75%
D
100%
Correct Answer
Option A
Detailed Explanation
In a monohybrid cross involving complete dominance, the F2 generation shows a phenotypic ratio of 3:1. Thus, the probability of obtaining a dwarf plant (tt) is 1 out of 4, or 25%.
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