Question Detail
Question
Which of the following hormones is directly responsible for the maintenance of the uterine lining during pregnancy in mammals? a. Progesterone b. Prolactin c. Estrogen d. FSH
Correct Answer
Option A is the correct answer.
Detailed Explanation
Progesterone is the key hormone for maintaining the endometrium (uterine lining) throughout pregnancy. It prevents menstruation and keeps the uterine environment supportive for the embryo/fetus. It is produced first by the corpus luteum and later by the placenta.
Hint
This hormone is often called the 'pregnancy hormone'.