The Female Reproductive System

To solve the problem, we need to determine which type of sex chromosomes are present in women.

1. Understanding Human Sex Chromosomes:
Humans have 23 pairs of chromosomes, of which one pair determines sex. These are called sex chromosomes.

2. Chromosome Combinations:
- Males have one X and one Y chromosome (XY)
- Females have two X chromosomes (XX)

3. Eliminate Incorrect Options:
- XY → Male
- YY → Not a viable combination in humans
- XW → Found in birds, not humans (W chromosome is in female birds)

Final Answer:
Women have XX sex chromosomes.

To solve the problem, we need to determine how many types of sex chromosomes are present in the ova (gametes) produced by a woman.

1. Understanding Human Sex Chromosomes:
Humans have two types of sex chromosomes: X and Y.
- Females have two X chromosomes (XX).
- Males have one X and one Y chromosome (XY).

2. Gamete Formation in Females:
During meiosis (gamete formation), each ovum (egg cell) receives only one sex chromosome.
Since females have only X chromosomes, all ova will carry only the X chromosome.

3. Types of Sex Chromosomes in Ova:
Only one type of sex chromosome (X) is present in the ova produced by women.

Final Answer:
The ova produced by a woman contains type of sex chromosome.