Question

If the vas deferens of a man is surgically disconnected
A. Sperms in the semen will be without nuclei.
B. Semen will be without sperms.
C. Spermatogenesis will not occur.
D. Sperms in the semen will be non-motile.

Answer 1

Hint: There are many different types of contraception methods. Sterilization is the best method of contraception to prevent childbirth. There are several other methods but there is a chance of failure. There are various side effects caused by other methods.

Complete answer: The sterilization procedure helps to prevent sperms from meeting with the egg. The method of sterilization varies from male to female. Sterilization in males is termed as vasectomy, whereas in females, it is termed as tubectomy. The sterilization of females is also termed and called to be a tubal ligation. It comprises the closing of the fallopian tubes and therefore, prevents the egg from moving down the fallopian tube and meeting with the sperm. Vasectomy constitutes tying, cutting, clipping or sealing of the vas deferens of a male to prevent the release of the sperm. It is more effective and more preferable when compared to female tubectomy. The sterilization in a woman can be explained and termed as a process to control childbirth completely. It is one of the most effective and most preferred procedures to prevent pregnancy. There are different steps to perform sterilization. It is an irreversible method.
a) Sperms in the semen will be without nuclei: The sperm nucleus possesses DNA, which is required to carry information from parents to offspring.
b) Semen will be without sperms.: Vasa deferentia is a tube that helps to transport sperms, but if it is blocked then, there will be no sperm in the semen.
c) Spermatogenesis will not occur: Spermatogenesis is a condition that is the name given to the formation of sperms, which occurs in the testes.
Sperms in the semen will be non-motile: This condition is termed as asthenozoospermia. It is a condition that represents male infertility but does not occur due to vas deferens blockage.
Hence, the correct answer is option B.

Note: The sterilization procedures prevent pregnancy permanently. Once, it is done, when a man ejaculates, the semen will not contain any sperms in it and so the eggs would not be fertilized.