If the vas deferentia of both the sides is cut and tied by thread then what would happen
A . This will prevent gamete formation
B. this will block gamete transport and thereby prevent conception
C . Semen is without sperms
D . The production of testosterone will stop
Which of the following option is correct

Options

A. A & D only
B. A & B only
C. B & C only
D. B ,C & D only

Answer

To solve the question regarding the effects of cutting and tying the vas deferens, we can analyze each option step by step:

### Step-by-Step Solution:

1. **Understanding Vasectomy**:
- The procedure of cutting and tying the vas deferens is known as vasectomy. This is a surgical method of male sterilization that prevents sperm from being included in the semen.

**Hint**: Remember that vasectomy is a surgical procedure aimed at preventing sperm transport.

2. **Effect on Gamete Formation**:
- Gamete formation occurs in the testes, where sperm is produced. Cutting the vas deferens does not affect the testes or the process of sperm production. Therefore, this option is incorrect.

**Hint**: Gamete formation is independent of the vas deferens; it happens in the testes.

3. **Effect on Gamete Transport**:
- By cutting and tying the vas deferens, the transport of sperm from the testes to the urethra is blocked. This means that sperm cannot reach the urethra and therefore cannot be ejaculated. This option is correct.

**Hint**: Think about the role of the vas deferens in transporting sperm.

4. **Effect on Semen Composition**:
- Since the sperm cannot travel through the vas deferens, the semen that is ejaculated will be devoid of sperm. Thus, this option is also correct.

**Hint**: Consider what happens to the semen if sperm cannot be transported.

5. **Effect on Testosterone Production**:
- Testosterone is produced in the testes and is not affected by the cutting of the vas deferens. The production of testosterone will continue as normal. Therefore, this option is incorrect.

**Hint**: Testosterone production is linked to the testes, not the vas deferens.

### Conclusion:
Based on the analysis, the correct options are:
- **B**: This will block gamete transport and thereby prevent conception.
- **C**: Semen is without sperm.

Thus, the correct answer to the question is **B and C**.