PATHOLOGY MCQ
GENETICS AND DISEASE
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Which of these choices has a 50% probability of happening
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The offspring of parents with the alleles AA and aa will have the alleles Aa
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The offspring of parents with the alleles AA and aa will have the alleles aa
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The offspring of parents with the alleles Aa and Aa will have the alleles Aa
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The offspring of parents with the alleles Aa and Aa will have the alleles AA
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Explanation:
Detailed explanation-1: -If the parent with the unknown genotype is heterozygous, 50 percent of the offspring will inherit a recessive allele from both parents and will have the recessive phenotype.
Detailed explanation-2: -When crossing two heterozygous parents, this would result in a 50% chance of having offspring that are also heterozygous. There would be a 25% chance of having a child that is homozygous dominant (AA) and a 25% chance of having a child that is homozygous recessive (aa).
There is 1 question to complete.