Question

Match List I with List II:

List I	List II
A. Down Syndrome	I. Trisomy-21
B. Turner Syndrome	II. 45, X
C. Klinefelter Syndrome	III. 47, XXY
D. Cri-du-chat Syndrome	IV. Defective Chromosome - 5

Choose the correct answer from the options given below:

• A. (A)- (II), (B)- (IV), (C)- (I), (D)- (III)
• B. (A)- (IV), (B)- (II), (C)- (I), (D)- (III)
• C. (A)- (IV), (B)- (III), (C)- (I), (D)- (II)
• D. (A)- (II), (B)- (III), (C)- (IV), (D)- (I)

Hint:

Knowing the chromosomal patterns associated with syndromes aids in genetic and medical studies.

Answer 1

The Correct Option is B

- Down Syndrome is caused by Trisomy-21, which means an extra copy of chromosome 21.
- Turner Syndrome occurs due to the presence of a single X chromosome (45, X).
- Klinefelter Syndrome is identified with the karyotype 47, XXY.
- Cri-du-chat Syndrome results from a deletion in chromosome 5, leading to various developmental issues.