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प्रश्न
Explain any two ways by which IUDs devices act as contraceptives.
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उत्तर
- 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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संबंधित प्रश्न
An infertile couple is advised to adopt test-tube baby programme. Describe two principle procedures adopted for such technologies.
State True/False with explanation.
Infertility is defined as the inability to produce a viable offspring and is always due to abnormalities/defects in the female partner.
Give four causes of infertility in males.
In case of a couple where the male is having a very low sperm count, which technique will be suitable for fertilisation?
ZIFT is transfer of ______.
Mark the odd one.
The test-tube baby programme employs which one of the following techniques?
Read the given below statements carefully and state whether the following are true (T) or false (F).
- I - MOET is one of the methods of IVF.
- II - ICSI is a method useful only for males who are unable to inseminate.
- III - MTP is considered safe during the first 1 week of pregnancy.
- IV - LNG-20, multi-load 375 are hormone-releasing IUDs.
- V - Steroids inhibit ovulation and implantation.
Choose the correct option regarding the above-given statements.
The ______ is also called the womb.
Which one of the following choices reflects the correct number of chromosomes in the zygote and in the second polar body of Drosophila melanogaster?
| Zygote | Meiocytes | |
| I | 08 | 08 |
| II | 04 | 08 |
| III | 08 | 04 |
| IV | 04 | 04 |
