In humans, the sex of the baby is determined:

1. At the time of fertilization and by the father

2. At the time of fertilization and by the mother

3. At the time of implantation and by the father

4. At the time of implantation and by the mother

Cleavage is:

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

The fetal body is covered with fine hair, eyelashes separate, and eyelashes are formed by the end of:

Consider the following two statements:
I. Not all copulations lead to fertilization and pregnancy
II. Fertilization can occur if the ovum and the sperms are simultaneously transported to the fallopian tubes.
1. Both I and II are correct and II correctly explains I
2. Both I and II are correct but II does not explain I
3. I is correct but II is incorrect
4. I is incorrect but II is correct

Which hormone is mainly secreted by the developing follicles during the proliferative phase of the menstrual cycle?

What is released at ovulation?

At the birth of the female child, the follicles in her ovaries contain:

FSH:

1. Acts on Sertoli cells and stimulates secretion of some factors that help in spermiogenesis

2. Acts on Sertoli cells and inhibits secretion of some factors that help in spermiogenesis

3. Acts on Leydig cells and stimulates secretion of some factors that help in spermiogenesis

4. Acts on Leydig cells and inhibits secretion of some factors that help in spermiogenesis

Ovaries are the primary sex organs in human females because they:
I. Produce the female gamete
II. Produce the hormone that regulates the development of secondary sexual characters
1. Both I and II
2. Only I
3. Only II
4. None