How many types of gamete are formed from an individual with genotype TtRr?
A
2
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B
6
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C
8
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D
4
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Solution
The correct option is B 4 Total number of types of gamete produce by an organism is 2n, where n is the number of heterozygous genes present. Since given genotype TtRr is heterozygous for two genes, thus total possible gametes by it = 22=4.