Gujarati
4.Principles of Inheritance and Variation
normal

In a cross between white-flowered parents, $F_1$ progeny was uniformly purple-flowered. The $F_2$ progeny showed a phenotypic ratio $9 : 7$ between purple-flowered and white-flowered plants. The above result indicates that the flower colour is controlled by

A

Two alleles

B

One allele

C

Three alleles

D

Four alleles

Solution

(a) This is an example of complementary genes.

Standard 12
Biology

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