PATHOLOGY MCQ
GENETICS AND DISEASE
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Yy
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Y
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yy
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YY
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Detailed explanation-1: -The correct answer: The genotype which shows the character of homozygous dominant is D. SS. The homozygous genotypes are formed when the alleles present in pairs are the same. The dominant genotypes are the characters in a particular allele which are expressed as a phenotype in the species.
Detailed explanation-2: -yy is the homozygous dominant genotype (2 y alleles). The phenotype of this genotype is green seed color. The types of gametes produced by each individual depends on its genotype. So, a YY genotype can only produce gametes with Y alleles.
Detailed explanation-3: -That can be either AA or aa, homozygous dominant or homozygous recessive. An individual who is homozygous dominant for a particular gene will have two dominant “A” alleles for that gene. An individual who is homozygous recessive will have the “aa” genotype, two recessive “a” alleles.
Detailed explanation-4: -So, the correct answer is ‘TT and tt’.