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Question
Explain any two ways by which IUDs devices act as contraceptives.
Solution
- Copper-releasing IUDs produce copper ions, which reduce sperm motility and fertility.
- Copper-releasing IUDs make it tougher for a fertilised egg to implant in the uterus.
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RELATED QUESTIONS
An infertile couple is advised to adopt test-tube baby programme. Describe two principle procedures adopted for such technologies.
Explain one application of the following:
ZIFT
Fill in the blank:
Sperm fertilizes ovum in the _______of fallopian tube.
The highly sophisticated procedure of directly injecting a sperm into an egg is called ______.
Test-tube baby is one who ______.
Choose the correct statement regarding the ZIFT procedure.
Artificial insemination means ______.
Given below are Column A with a list of certain Assisted Reproductive Technologies (ART) and in Column B the procedures followed during ART:
| Column A | Column B | ||
| S. No. | Names of ART | S. No. | Procedures |
| (A) | GIFT | (i) | Transfer of ovum from a donor into the fallopian tube of another female. |
| (B) | ICSI | (ii) | Transfer of semen from the donor into the vagina of the female. |
| (C) | ZIFT | (iii) | Injecting sperm directly into the ovum. |
| (D) | IUI | (iv) | Transfer of early embryos into the fallopian tube. |
Choose the option where ART correctly matches with the procedure.
Expand the term ZIFT.
The ______ is also called the womb.
