Question

How many chromosomes are found in Turner and Klinefelter syndromes?

Hint:

Turner syndrome affects females (monosomy), while Klinefelter syndrome affects males (trisomy of sex chromosomes).

Answer 1

1. Turner Syndrome:
- Individuals have a total of 45 chromosomes.
- Karyotype: $45, XO$ (missing one sex chromosome).
2. Klinefelter Syndrome:
- Individuals have a total of 47 chromosomes.
- Karyotype: $47, XXY$ (one extra X chromosome).
Final Answer:
\[ \boxed{\text{Turner Syndrome: 45 chromosomes, Klinefelter Syndrome: 47 chromosomes.}} \]