Question

In the event of pregnancy, the corpus luteum persists under the influence of
(A) LH
(B) FSH
(C) Chorionic Gonadotropin
(D) Progesterone

Answer 1

Hint: It is a hormone produced by the cells which surround the human embryo. the cells which secrete these hormones will develop into the placenta furtherly. Human chorionic Gonadotropin is primarily produced by syncytiotrophoblastic cells of the placenta during pregnancy.

Complete answer:
In pregnancy, the corpus luteum persists under the influence of chorionic gonadotropin. Human chorionic gonadotropin signals the corpus luteum to secrete progesterone. Maintains a thick endometrium layer and an area that is rich in blood useful for the development of zygotes.

Additional information: Human chorionic gonadotropin is a hormone produced by cells that surround the growing human embryo; These cells will eventually form the placenta. Human chorionic gonadotropin can be detected in urine 7-9 days after fertilization, as the embryo adheres and implants in the uterus; forms the basis of most over-the-counter and a hospital pregnancy test.
The hormone present in the placental region which is initially secreted by the cells of the concept that is implanted in weeks 2 named as Human chorionic gonadotropin (hCG, or human chorionic gonadotropin) , it supports the ovarian corpus luteum, which in turn supports the lining of the endometrium and, therefore, it maintains the pregnancy.
So, the correct answer is ‘(C) Chorionic Gonadotropin’.

Note: The main function of hCG is to maintain the corpus luteum so that the corpus luteum continues to produce estrogen and progesterone. HCG begins to decline when the placenta grows enough to become the primary producer of these 2 hormones. However, this continues for several weeks after pregnancy.