Which of the following statements correctly describes aneuploid conditions?
A)A monosomy is more frequent than a trisomy.
B)Monosomy X is the only known viable human monosomy.
C)Of all human aneuploidies,only Down syndrome is associated with developmental delays or subnormal intelligence.
D)An aneuploidy resulting in the deletion of a chromosome segment is less serious than a duplication.

Question

Quizplus · Accepted Answer

Monosomy X, also known as Turner syndrome, is the only known viable human monosomy, whereas most monosomies result in miscarriage or stillbirth. Option A is incorrect because trisomies are actually more frequent than monosomies in humans. Option C is incorrect because there are other aneuploidies, such as Edwards syndrome and Patau syndrome, that are associated with developmental delays or subnormal intelligence. Option D is incorrect because both deletions and duplications of chromosome segments can have serious consequences, depending on the specific genes affected.

Which of the Following Statements Correctly Describes Aneuploid Conditions