How many ova and sperms would be produced from `50` secondary oocytes and `50` secondary spermatocytes during gametogenesis in human?

Options

A. `100` ova, `100` sperms
B. `50` ova, `50` sperms
C. `50` ova, `100` sperms
D. `100` ova, `200` sperms

Answer

To solve the problem of how many ova and sperms would be produced from 50 secondary oocytes and 50 secondary spermatocytes during gametogenesis in humans, we can follow these steps:

### Step-by-Step Solution:

1. **Understanding Gametogenesis**:
- Gametogenesis is the process of forming gametes, which are the reproductive cells (sperms in males and ova in females).
- In males, this process is called spermatogenesis, and in females, it is called oogenesis.

2. **Analyzing Secondary Spermatocytes**:
- Secondary spermatocytes are haploid cells that undergo meiosis to produce spermatids.
- Each secondary spermatocyte divides to form **2 spermatids**.
- Therefore, from **50 secondary spermatocytes**, the total number of spermatids produced will be:
\[ 50 \text{ secondary spermatocytes} \times 2 \text{ spermatids/secondary spermatocyte} = 100 \text{ spermatids} \]

3. **Analyzing Secondary Oocytes**:
- Secondary oocytes are also haploid and undergo a meiotic division that results in one ovum and one polar body.
- The polar body typically does not develop into a functional gamete.
- Therefore, from **50 secondary oocytes**, the total number of ova produced will be:
\[ 50 \text{ secondary oocytes} \times 1 \text{ ovum/secondary oocyte} = 50 \text{ ova} \]

4. **Final Count**:
- From the calculations, we find that:
- **Total Ova = 50**
- **Total Spermatids = 100**

### Conclusion:
Thus, from 50 secondary oocytes, **50 ova** are produced, and from 50 secondary spermatocytes, **100 spermatids** are produced.