Question

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 x y #1normaldowns syndromeklinefelters syndromecri du chat syndrometurners syndrome

Explanation:

1. First, analyze the karyotype: it has a full set of 22 autosomal chromosome pairs, and the sex chromosomes are one X and one Y (typical for a biological male).
2. Below the main karyotype, there is a partial, truncated chromosome labeled #1, which shows a deletion on the short (p) arm of chromosome 1.
3. Match this to the options:

• Normal: Incorrect, as there is a chromosome deletion.
• Down's Syndrome: Caused by a trisomy of chromosome 21, not present here.
• Klinefelter's Syndrome: Caused by an extra X chromosome (XXY), not present here.
• Cri du Chat Syndrome: Caused by a deletion on the short arm of chromosome 5, but this karyotype shows a deletion on chromosome 1.
• Turner's Syndrome: Caused by a missing or partially missing X chromosome (XO), not present here.

Note: The karyotype shows a deletion on chromosome 1, which does not match the classic Cri du Chat deletion on chromosome 5. However, among the given options, Cri du Chat is the only condition defined by a chromosome arm deletion, which aligns with the visible structural abnormality in the karyotype.

Answer:

Cri du Chat Syndrome