HEREDITY
MONOHYBRID CROSS
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Which of the following is a homozygous genotype? (Select ALL that apply)
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AA
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Aa
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aa
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Explanation:
Detailed explanation-1: -A homozygous genotype means that you have two of the same alleles, which are represented by the letters A or a. So if an individual has AA or aa, we say they are homozygous.
Detailed explanation-2: -So, the correct answer is ‘TT and tt’.
Detailed explanation-3: -Genotype AA is the universally compatible genotype that is, regardless of who they partner up with, there is no possibility of them birthing a child with sickle cell disease. Here are the compatible and incompatible genotypes: AA + AA = compatible. AA + AS = compatible.
Detailed explanation-4: -As carriers, you and your mate are both heterozygous (Aa). This disease only afflicts those who are homozygous recessive (aa).
There is 1 question to complete.