Question
Biology Question on human health and disease
Down’s syndrome in human occurs due to following chromosomal disorder :
A
21-trisomy
B
18-trisomy
C
XXY
D
XO
Answer
21-trisomy
Explanation
Solution
The correct option is (A): 21-trisomy
Down’s syndrome in human occurs due to following chromosomal disorder :
21-trisomy
18-trisomy
XXY
XO
21-trisomy
The correct option is (A): 21-trisomy