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  • In a dihybrid cross, if you get 9:3:3:1 ratio it denotes that: a. The alleles of two genes are interacting with each other b. It is a multigenic inheritance c. It is a case of multiple allelism d. The alleles of two genes are segregating independently

In a dihybrid cross, if you get 9:3:3:1 ratio it denotes that:

a. The alleles of two genes are interacting with each other

b. It is a multigenic inheritance

c. It is a case of multiple allelism

d. The alleles of two genes are segregating independently

Answers (1)

The answer is the option (d) The alleles of two genes are segregating independently.

Explanation: According to Mendel, this is the ideal dihybrid ratio. A dihybrid cross consists of two pairs of opposing features. A plant with round, yellow seeds (YYRR) crossed with a plant with wrinkled, green seeds (YYRR) is one example. After the first filial generation selfed, the second filial generation's phenotypic ratio was determined to be 9:3:3:1. So, (d) is the appropriate option.

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