Question Detail

BIO 101 BIO 101 Past Questions Objective Question

Question

Which genetic mechanism causes Down syndrome?
Options
A An extra chromosome 21
Correct Answer
B Monosomy of chromosome X
C Point mutation in CFTR
D Trisomy of chromosome 13
Correct Answer

Option A is the correct answer.

Detailed Explanation

Down syndrome is caused by an extra chromosome 21 (Trisomy 21).

Hint

No hint available

Question Info