PATHOLOGY MCQ
GENETICS AND DISEASE
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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A homozygous tall pea plant (TT) is crossed with a heterozygous tall pea plant (Tt). Which statement is true about the offspring of this cross?
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All of the offspring will have the same phenotype (short), but two different genotypes (Tt, tt).
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All of the offspring will have the same phenotype (short) and the same genotype (tt).
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All of the offspring will have the same phenotype (tall), but two different genotypes (TT, Tt).
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All of the offspring will have the same phenotype (tall) and the same genotype (Tt).
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Explanation:
Detailed explanation-1: -In a cross between heterozygous tall plants (Tt) and a homozygous dwarf plant (tt), the ratio in the offspring shall be 1 tall : 1 dwarf. This is because the heterozygous plant will make two types of gametes, one type having T allele and the other having t allele.
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