PATHOLOGY MCQ
GENETICS AND DISEASE
Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Codominance
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Incomplete dominance
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Polygenic traits
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None of the above
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Detailed explanation-1: -In codominance, neither allele is dominant over the other, so both will be expressed equally in the heterozygote.
Detailed explanation-2: -Incomplete dominance is a non-Mendelian inheritance pattern. It states that neither trait is dominant. The traits appear to blend together.
Detailed explanation-3: -Codominance. As opposed to partial dominance, codominance occurs when the phenotypes of both parents are simultaneously expressed in the same offspring organism.
Detailed explanation-4: -Codominance. Codominance happens when both the alleles get expressed equally in the heterozygote phenotype. The phenotype of the offspring is a combination of the phenotype of the parents. Thus, the trait is neither dominant nor recessive.
Detailed explanation-5: -Pleiotropy. Some genes affect more than one phenotypic trait. This is called pleiotropy . There are numerous examples of pleiotropy in humans.