STANDARDBotany-Genetics

STANDARD Botany Incomplete Dominance MCQ Question

Type: MCQ-conceptual-Medium

In Antirrhinum two plants with pink flowers were hybridized. The F₁ plants produced red, pink and white flowers in the proportion of 1 red, 2 pink and 1 white. What could be the genotype of the two plants used for hybridization. Red flower colour is determined by RR, and white by rr genes

A

rrrr

B

RR

C

Rr

D

rr

Correct Answer

Option C

Detailed Explanation

The genotype of the two plants used for hybridization is Rr. This results in a 1:2:1 ratio of red, pink, and white flowers, indicating incomplete dominance.

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