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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complete dominance
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Multiple alleles
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Detailed explanation-1: -Angora rabbits have long fur. Rex rabbits have short fur. When an Angora rabbit is bred with a Rex rabbit, the offspring have fur length a little longer than that of a Rex rabbit.
Detailed explanation-2: -Coat color in rabbits is inherited as a series of multiple alleles. This means that there can be more than just 2 alleles for a single gene. In the case of coat color in rabbits, there are four alleles, and each one is expressed with a different phenotype.
Detailed explanation-3: -Codominance. Two alleles may be simultaneously expressed when both are present, rather than one fully determining the phenotype.
Detailed explanation-4: -In codominance, neither allele is dominant over the other, so both will be expressed equally in the heterozygote. In incomplete dominance, there is an intermediate heterozygote (such as a pink flower when the parents’ phenotypes are red and white).