HEREDITY
MONOHYBRID CROSS
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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50%
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100%
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25%
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0%
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Detailed explanation-1: -1. In humans, tongue rolling is a dominant trait, those with the recessive condition cannot roll their tongues. Bob can roll his tongue, but his mother could not. He is married to Sally, who cannot roll her tongue.
Detailed explanation-2: -The ability to roll tongue is dominant over inability to do it. If the dominant allele is R and the recessive allele is r, therefore the two individuals have the homozygous recessive character. This means the genotype of the organism will be ‘rr’.
Detailed explanation-3: -Answer: The ability to curl your tongue up on the sides (T, tongue rolling) is dominant to not being able to roll your tongue.
Detailed explanation-4: -True. “In humans, the ability to roll the tongue is a dominant trait; the inability to roll the tongue is a recessive trait."