OBJECTIVE LIFE SCIENCE
GENETICS
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Jackie is homozygous recessive for having dimples (D). What is her genotype?
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pp
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Dd
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dd
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DD
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Explanation:
Detailed explanation-1: -Individuals who are homozygous dominant (DD) or heterozygous (Dd) are Rh+. Those who are homozygous recessive (dd) are Rh-(i.e., they do not have the key Rh antigens).
Detailed explanation-2: -DD or Dd is regarded as heterozygous and dd is homozygous recessive. In the heterozygous and homozygous condition, the recessive gene is masked by the dominant gene and not expresses. Therefore, recessive traits are expressed only in the homozygous condition.
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