Final answer:
Individuals with Klinefelter syndrome have 47 chromosomes with an XXY genotype, while those with Turner syndrome have 45 chromosomes due to their XO genotype. The correct answer is D) 47, 45.
Step-by-step explanation:
Klinefelter syndrome and Turner syndrome are two genetic conditions related to anomalies in the number of sex chromosomes. A person with Klinefelter syndrome has 47 chromosomes, specifically an XXY genotype. This can result in a range of symptoms, including small testes, enlarged breasts, reduced body hair, and sometimes reduced testosterone production and sterility. In Turner syndrome, individuals have a total of 45 chromosomes, with an XO genotype. Those with Turner syndrome typically exhibit features such as short stature, webbed neck, and may have hearing and cardiac impairments, as well as sterility.
The correct answer to the question is option D) 47, 45. Option A) is incorrect because Turner syndrome individuals have one fewer chromosome than normal, not the typical 46. Option B) is incorrect as it suggests the reverse chromosome count for the two syndromes. Option C) is incorrect because it suggests that individuals with Klinefelter syndrome have the normal number of chromosomes, which they do not. Thus, Klinefelter syndrome corresponds to 47 chromosomes (XXY), while Turner syndrome corresponds to 45 chromosomes (XO).