Question

The nurse is assessing the development of a male child and finds that the child is tall, with deficient secondary sex characteristics and hypogenitalism. Which chromosomal notation is associated with the child's condition?

Answer 1

The condition described is associated with Klinefelter syndrome, which has a chromosomal notation of XXY. This results in underdeveloped secondary sexual characteristics and hypogenitalism in males due to an extra X chromosome.

Step-by-step explanation:

The chromosomal notation associated with a male child who is tall, with deficient secondary sex characteristics and hypogenitalism, is likely XXY, which corresponds to Klinefelter syndrome. In Klinefelter syndrome, males typically present with underdeveloped secondary sexual characteristics, as the lack of male hormones, whether due to primary testis defect or secondary pituitary defect, results in reduced masculinization and atrophy of sex organs later in life. The extra X chromosome causes phenotypical changes such as small testes, enlarged breasts, and reduced body hair. Additionally, affected individuals are often unable to produce sperm, leading to infertility.