How many ova may be produced by a virgin human female in reproductive age ?

Options

A. 400
B. 35
C. 7 million
D. 0

Answer

### Step-by-Step Solution:

1. **Understanding Ova Production**: Ova (egg cells) are produced in a female's ovaries during fetal development. A female is born with all the ova she will ever have, which are formed during her development in the womb.

**Hint**: Remember that the production of ova occurs before birth.

2. **Ova Count at Birth**: When a female child is born, she has a large number of ova, estimated to be in the millions. However, these ova are in a dormant state, arrested in prophase I of meiosis.

**Hint**: Think about how many ova are present at birth versus how many are mature at reproductive age.

3. **Ova at Puberty**: By the time a female reaches puberty (around ages 12 to 15), the number of ova decreases significantly due to atresia (the process of degeneration of ovarian follicles). At this stage, she may have around 60,000 to 80,000 ova remaining in her ovaries.

**Hint**: Consider the changes that happen to the number of ova as a female matures.

4. **Ova Release During Reproductive Years**: During a female's reproductive years, typically from puberty until menopause (around age 50), only one ova is released per menstrual cycle. This means that while many ova are present, only a small number will mature and be ovulated.

**Hint**: Focus on how many ova are actually released during the menstrual cycle.

5. **Conclusion on Ova Production**: The question specifically asks about the number of ova produced by a virgin human female in reproductive age. Since the ova are not produced during this time (they were produced during fetal development), the answer is effectively zero.

**Hint**: Remember that the production of ova is not ongoing; it occurs during fetal development.

### Final Answer:
The number of ova produced by a virgin human female in reproductive age is **0**.