Question

In a human female, menstrual cycle of 28 days is represented by the diagram given below. Select the correct statement related with this diagram.

• A. Primary follicle of ovary matures into Graafian follicle in phase II.
• B. The hormone secreted in large amounts in phase III is also responsible for maintaining pregnancy in human females.
• C. Corpus luteum secretes progesterone in phase I, however it degenerates completely in phase III.
• D. Both (A) and (B).

Hint:

Progesterone plays a crucial role in preparing the uterus for pregnancy and maintaining it during the early stages, especially if the fertilized egg implants successfully.

Answer 1

The Correct Option is D