Which of the following changes are most likely to occur in a male songbird that has a mutation in the cells in its anterior pituitary gland such that FSH and LH are produced at 1% of normal levels?
A) decreased frequency of "singing" to attract females
B) increased testosterone production
C) increased courtship displays to attract females
D) decreased GnRH production

Question

Quizplus · Accepted Answer

A decrease in FSH and LH production would lead to lower testosterone levels, as these hormones stimulate testosterone production. Lower testosterone levels would likely result in decreased frequency of singing, which is a behavior used to attract females and is influenced by testosterone.

Which of the Following Changes Are Most Likely to Occur