Question

Assertion: In a vasectomy, a small part of the vas deferens is removed or tied up. 

Reason: In tubectomy, a small part of the Fallopian tube is removed or tied up. 

A) Both Assertion and Reason are correct and Reason is the correct explanation for Assertion.

B) Both Assertion and Reason are correct but reason is not the correct explanation of Assertion. 

C) Assertion is correct but Reason is incorrect.

D) Both Assertion and Reason are incorrect.

Answer 1

Hint: Vasectomy and tubectomy are two surgical procedures used to prevent conception. These are permanent methods of contraception. They are also referred to as sterilization techniques as male or female going through these procedures will become sterile.

Complete answer:
Vasectomy and tubectomy are two permanent methods of contraception. Both techniques involve surgical procedures. These methods are advised to males and females in the case to prevent any further pregnancies. The principle of both techniques is based on the concept to block gamete transport. Thus, these techniques prevent contraception.

  
The vasectomy is performed in males that involve the removal of a small part of vas deferens. Vas deferens is a tubular structure through which sperms are transported to the penis. From the penis, the sperms enter the female reproductive tract. Thus, a small region of vas deferens is cut and then tied up through an incision on the scrotum. On the other hand, in tubectomy, a small region of the fallopian tube is removed. The fallopian tube is a tubular structure of the female reproductive part and is responsible for receiving an ovulated egg to expose it for fertilization. An incision is made in the abdomen or through the vagina and the fallopian tubes are cut and tied. Thus, we can conclude that assertion and reason, both define two different processes. Hence, the reason is not the correct explanation for the assertion.
Therefore, option B is the correct answer.

Note: Both these techniques are highly effective and thus, confirm the efficiency of contraception. But reversibility of these techniques is poor as they involve surgical incisions. Thus, these are not recommended if pregnancy is wished for in the future.