Botany-Incomplete Dominance
NEET Botany Incomplete Dominance MCQ Question
Type: MCQ-numerical-Hard-Class 12
In a cross between true-breeding red-flowered (RR) and true-breeding white-flowered (rr) snapdragon plants, what percentage of the F2 generation is expected to have pink flowers?
A
25%
B
50%
C
75%
D
100%
Correct Answer
Option B
Detailed Explanation
In incomplete dominance, the F2 generation from a self-pollinated F1 (Rr) shows a phenotypic ratio of 1:2:1 (red:pink:white). Thus, 50% of the F2 plants are pink.
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