OBJECTIVE LIFE SCIENCE
GENETICS
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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If a pea plant were homozygous recessive for height, how would its alleles be represented?
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TT
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Tt
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tt
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tT
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Explanation:
Detailed explanation-1: -A monohybrid cross between a parent that is homozygous dominant and a parent that is homozygous recessive for a particular trait produces offspring that are all heterozygous for that trait.
Detailed explanation-2: -The genotype is represented by letter combinations, such as TT, Tt, and tt . When an organism has two of the same alleles for a specific gene, it is homozygous (homo-means “same") for that gene. An organism can be either homozygous dominant ( TT ) or homozygous recessive ( tt ).
Detailed explanation-3: -As the given genotype is Tt, it’s a heterozygous condition and in heterozygous condition the dominant trait (T-tall) will express itself. Hence, the phenotype of Tt will be a tall plant. Q.
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