Which of the following is an example of chromosomal abnormality that occurs when whole chromosomes do not separate properly during meiosis?
A)Down syndrome
B)Hemophilia
C)Huntington's disease
D)Sickle-cell anemia

Question

Quizplus · Accepted Answer

Down syndrome is caused by an extra copy of chromosome 21, which occurs when the chromosomes fail to separate properly during meiosis. This is known as non-disjunction. Hemophilia, Huntington's disease, and sickle-cell anemia are all caused by mutations in specific genes, and are not associated with chromosomal abnormality during meiosis.

Which of the Following Is an Example of Chromosomal Abnormality