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Topic starter
A fetus with the genotype XXY will most likely
(A) result in a miscarriage.
(B) suffer from sterility as an adult.
(C) be color blind.
(D) grow into a depressed adult.
(E) develop into a passive, withdrawn woman.
Spoiler
Answer
(B) suffer from sterility as an adult.
Spoiler
Explanation
A fetus with the genotype XXY will most likely suffer from sterility as an adult. The XXY genotype is known as Klinefelter’s syndrome and is one of the few chromosomal abnormalities that does not typically result in a miscarriage. Men with Klinefelter’s syndrome are somewhat less likely to be color blind than other men since the trait for color blindness is recessive and carried on the X chromosome; therefore, these men would have to have a copy of the gene on each of the X chromosomes to express it. Depression is not associated with Klinefelter’s syndrome, and everyone who has Klinefelter’s syndrome is a male due to the presence of the Y chromosome.
Posted : 17/04/2024 4:27 pm