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Biology: The Unity and Diversity o...

15th Edition
Cecie Starr + 3 others
ISBN: 9781337408332

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BuyFindarrow_forward

Biology: The Unity and Diversity o...

15th Edition
Cecie Starr + 3 others
ISBN: 9781337408332
Textbook Problem
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A vasectomy blocks or cur the ___ .

  1. a. oviducts
  2. b. urethra
  3. c. seminiferous tubules
  4. d. vas deferens

Summary Introduction

Concept introduction: Fertilization is the process where the male and female gametes unite to form the zygote, and thus the female gets conceived. Due to population explosion and to avoid unplanned pregnancy, contraception methods were introduced.

Explanation

Reason for correct statement:

The testis produces the sperms by the process of gametogenesis. The sperm matures in the epididymis. The matured sperms enter the vas deferens. The sperms enter the seminal vesicles and prostate gland where sperms are bathed in seminal fluid. The sperms along with the semen are ejaculated through the urethra. In vasectomy, the vas deferens is cut or tied by the surgeon in the males, so that the sperms do not exit through the vas deferens.

Option d. is given as “vas deferens”.

As vas deferens is cut and tied in vasectomy, the correct answer is option d.

Reasons for incorrect statements:

Option a. is given as “oviduct”.

Cutting and tying up the oviduct is tubectomy and is done in females...

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