Question

In humans, the ability to taste the bitter chemical PTC is controlled by a single gene. The tasting gene (T) is dominant to the non-tasting gene (t).

Which of the following genotypes is correctly labeled?
Choose 1 answer:
A
tT - heterozygous recessive
B
Tt - hom0zygous recessive
C
TT - hom0zygous dominant
D
tt - heterozygous dominant

Answer 1

CORRECT (SELECTED)

TT - homozygous dominant

Explanation: Individuals with two tasting alleles are homozygous dominant.

Answer 2

Answer: TT - hom0zygous dominant

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