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 of how many ova and sperms will be produced from 100 secondary oocytes and 100 secondary spermatocytes during gametogenesis in a man, we can break it down into two parts: the production of ova from secondary oocytes and the production of sperms from secondary spermatocytes.

### Step-by-Step Solution:

**Step 1: Understanding Secondary Oocytes**
- Secondary oocytes are the result of the first meiotic division in females and are haploid (n).
- Each secondary oocyte will develop into one ovum (egg) during the process of oogenesis.
- Therefore, from 100 secondary oocytes, we will produce 100 ova.

**Step 2: Understanding Secondary Spermatocytes**
- Secondary spermatocytes are the result of the first meiotic division in males and are also haploid (n).
- Each secondary spermatocyte undergoes a second meiotic division (meiosis II) to produce two spermatids, which then mature into sperm.
- Therefore, from 100 secondary spermatocytes, we will produce 200 sperms (100 secondary spermatocytes x 2 = 200 sperms).

**Final Answer:**
- From 100 secondary oocytes, 100 ova are produced.
- From 100 secondary spermatocytes, 200 sperms are produced.

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