question_answer

1 : 2 : 1 phenotypic and genotypic ratio is found in

A)  complementary genes

B)  blending inheritance

C)  multiple alleles

D)  pseudo alleles

Correct Answer: B

Solution :

Incomplete dominance or blending inheritance was first seen in Mirabilis jalapa (4O clock plant). Here, when red flowers are crossed with white flowers variety, the \[{{F}_{1}}\] hybrid is pink and \[{{F}_{2}}\] ratio is 1 red : 2 pink : 1 white.