Question

What is the unique feature of hormone-releasing IUDs?

(a) Causing lysis of sperms

(b) Increasing the release of sperms by male

(c) Rendering the uterus unsuitable for the fertilized egg to implant

(d) Closing of vagina

This question was addressed to me during an interview for a job.

My question is from Reproductive Health topic in section Reproductive Health of Biology – Class 12

Answer 1

Correct choice is (c) Rendering the uterus unsuitable for the fertilized egg to implant

To elaborate: The hormone-releasing IUDs are very strong and have fewer side-effects. These stimulate the body’s mechanisms to prevent fertilization. They render the cervix hostile for sperms and also make the uterus not suitable for the blastocyst to the implant. Thus, even if fertilization occurs, the chances of it leading to pregnancy are almost nil.