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If a man and a woman are heterozygous for a gene, and if they have three...

If a man and a woman are heterozygous for a gene, and if they have three children, what is the chance that all three will be homozygous recessive?

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Answer #1
  1. According to the principles of genetics , when the two parents are having an heterozygous condition it is not possible to have an homozygous recessive characters observed in three childrens.
  2. When considered for an tall characters and parents are crossed as shown in the given example.
  3. Tt (male) * (female) Tt

    (heterozygous tall) | (heterozygous tall)

    |

    Tt(heterogous tall)

    later then this

    Tt*Tt

    TT,Tt,Tt and tt

    Thus only one homozygous recessive condition can be observed.

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