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Question

How many types of gametes will be produced by an individual having genotype AaBbcc?

A
Four
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B
Three
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C
Two
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D
One
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Solution

The correct option is C Four
  • To calculate the number of gametes in a given genotype, we need to first count the number of heterozygous combination within that particular genotype: AaBbcc - 2 heterozygous combinations - Aa and Bb.
  • Now put it in the formula, 2n, where n= number of heterogeneous alleles present in the genotype.
  • Here, 22 = 4
  • Four types of gametes will be produced by an individual having the genotype AaBbcc. The gametes are: ABc, aBc, Abc, abc.

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