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प्रश्न
An infertile couple is advised to adopt test-tube baby programme. Describe two principle procedures adopted for such technologies.
उत्तर
In-vitro fertilisation (IVF): In this process, the fertilisation takes place outside the body (test tube baby). The following techniques are included in IVF:
- Zygote Intrafallopian Transfer (ZIFT) - In ZIFT, the sperm from a male donor and the ovum from a female donor are fused in the laboratory. The zygote so formed is transferred into the fallopian tube at the 8 blastomeres stage.
- Gamete Intrafallopian Transfer (GIFT) - In GIFT, females who cannot produce ovum, but can provide suitable conditions for the fertilisation of ovum, are provided with ovum from a donor.
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संबंधित प्रश्न
After a brief medical examination a healthy couple came to know that both of them are unable to produce functional gametes and should look for an 'ART' (Assisted Reproductive Technique). Name the 'ART' and the procedure involved that you can suggest to them to help them bear a child.
Write a brief note on the causes of infertility.
Fill in the blank:
The primary sex organ in human male is _______.
In which technique of ART is a single sperm injected directly into the cytoplasm of the ovum?
Which Artificial Reproductive Technique can help a lady conceive a child if both her fallopian tubes are blocked?
Test-tube baby is one who ______.
Assisted reproductive technology, IVF involves transfer of ______.
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.
Name any two Cu-ions releasing IUDs.
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 |
