The fact that the live birth rate from older mothers using oocytes in IVF from much younger women is much higher than from older mothers using their own oocytes indicates that the age effects on reproductive success reflect
A) the oocyte source.
B) the uterus source.
C) the age of the father.
D) the sperm count.
E) how many other children a couple has.

Question

Quizplus · Accepted Answer

The fact that the live birth rate is much higher when older mothers use oocytes from much younger women indicates that the age effect on reproductive success is primarily due to the oocyte source. In other words, the quality and functionality of oocytes decline as women age, which explains why using oocytes from younger women can lead to higher success rates in older mothers undergoing IVF.

The Fact That the Live Birth Rate from Older Mothers