Trisomy-21 results in which condition?
A) cretinism
B) phenylketonuria (PKU)
C) Fragile-X syndrome
D) Down syndrome

Name: Trisomy-21 results in which condition? A) cretinism B) phenylketonuria (PKU) C) Fragile-X syndrome D) Down syndrome
Brand: Quizplus
Rating: 4.8 (38 reviews)

Question

Quizplus · Accepted Answer

Trisomy-21 results in Down syndrome, which is caused by an extra copy of the 21st chromosome. Cretinism and PKU are genetic disorders caused by deficient enzyme activity, while Fragile-X syndrome is caused by a mutation in the X chromosome.

Trisomy-21 Results in Which Condition