LH surge:

1.	is a dramatic sudden increase in the levels of LH during the early part of menstrual cycle and is responsible for ovulation
2.	is a dramatic sudden decrease in the levels of LH during the early part of menstrual cycle and is responsible for ovulation
3.	is a dramatic sudden decrease in the levels of LH during the mid-menstrual cycle and is responsible for ovulation
4.	is a dramatic sudden increase in the levels of LH during the mid-menstrual cycle and is responsible for ovulation

Corpus luteum secretes large amounts of:

Zona pellucida is a membrane surrounding:

What ensures that only one sperm can fertilize the ovum?

Fertilization occurs at:

1. Infundibulum of the fallopian tube

2. Ampullary – isthmic junction of the fallopian tube

3. Fundus of the uterus

4. Body of the uterus

In humans, the sex of the baby is determined:

During the follicular phase of the menstrual cycle, which of the following occur?

Morula is a solid ball of cells during early embryonic development and consists of:

The trophoblast cells of the blastocyst form:

Implantation in humans occurs at the stage of: