How many ova and sperms will be produced from 100 secondary oocytes and 100 secondary spermatocytes during gametogenesis in a man ?

Options

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

Answer

To solve the question regarding the number of ova and sperms produced from 100 secondary oocytes and 100 secondary spermatocytes during gametogenesis in a man, we can break it down into steps:

### Step 1: Understanding Gametogenesis
Gametogenesis is the process of forming gametes (sperms and ova). In males, this process is called spermatogenesis, and in females, it is called oogenesis.

### Step 2: Analyzing Secondary Spermatocytes
- Each secondary spermatocyte undergoes meiosis to produce two spermatids.
- Since each secondary spermatocyte produces 2 spermatids, from 100 secondary spermatocytes, the total number of spermatids produced will be:
\[ 100 \, \text{secondary spermatocytes} \times 2 = 200 \, \text{spermatids} \]
- These spermatids then mature into sperm. Therefore, the total number of sperm produced will also be:
\[ 200 \, \text{sperms} \]

### Step 3: Analyzing Secondary Oocytes
- Each secondary oocyte undergoes meiosis to produce one ovum and one polar body. The polar body does not contribute to reproduction.
- Therefore, from 100 secondary oocytes, the total number of ova produced will be:
\[ 100 \, \text{secondary oocytes} \times 1 = 100 \, \text{ova} \]

### Step 4: Conclusion
- From the calculations, we find that:
- **Total number of sperms produced = 200**
- **Total number of ova produced = 100**

Thus, the final answer is:
- **200 sperms and 100 ova.**