First slide

Inheritance of Two Genes

Question

Genetically how many different types of gametes can be formed by a pea plant with the genotype RRGgTt

Easy

A

2
B

16
C

8
D

4

Solution

The possibility of formation of gametes with various genotypes is can be estimated with the help of formula $2^{n}$ . ‘n’ is number of traits in the genotype in heterozygous condition. Here two traits Gg and Tt are in heterozygous condition. Hence the number of types of gametes with different genotypes formed are $2^{2}$ = 4. They are gametes with the genotypes as RGT, RGt, RgT and Rgt.

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