Question

This karyotype represents a meiotic accident called __________ which, in this case, results in a condition called ____________. This condition causes females to be short in stature, lack secondary sex characteristics, and to be sterile.

Responses
A deletion; Down syndromedeletion; Down syndrome
B nondisjunction; Down syndromenondisjunction; Down syndrome
C deletion; Turner syndromedeletion; Turner syndrome
D nondisjunction; Turner syndromenondisjunction; Turner syndrome
E point mutation; Klinefelter syndromepoint mutation; Klinefelter syndrome
F nondisjunction; Klinefelter syndromenondisjunction; Klinefelter syndrome

Answer 1

D — nondisjunction; Turner syndrome.

Explanation: Turner syndrome (45,X) results from nondisjunction (loss of an X during meiosis), producing females who are short, lack secondary sex characteristics, and are sterile.