To produce an individual with Turner syndrome (45,X),
A) a nondisjunction event must have occurred during spermatogenesis.
B) more than one sperm must have been involved in fertilization.
C) a nondisjunction event must have occurred during oogenesis.
D) this must have been caused by uniparental disomy.
E) a nondisjunction event could have occurred during spermatogenesis or oogenesis.

Question

Quizplus · Accepted Answer

Turner syndrome (45,X) results from a nondisjunction event, which can occur either during spermatogenesis or oogenesis, leading to the production of a gamete with an abnormal number of sex chromosomes.

To Produce an Individual with Turner Syndrome (45,X)