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प्रश्न
An infertile couple is advised to adopt test-tube baby programme. Describe two principle procedures adopted for such technologies.
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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.
संबंधित प्रश्न
A large number of married couples the world over are childless. It is shocking to know that in India the female partner is often blamed for the couple being childless.
- Why in your opinion the female partner is often blamed for such situations in India? Mention any two values that you as a biology student can promote to check this social evil.
- State any two reasons responsible for the cause of infertility.
- Suggest a technique that can help the couple to have a child where the problem is with male partner.
Give four causes of infertility in males.
Explain one application of the following:
ZIFT
Fill in the blank:
The primary sex organ in human male is _______.
Fill in the blank:
The hormone produced by the testis is _______.
Short answer question.
Write a note on IVF.
Correct the following statement.
Transfering of an embryo with more than 8 blastomeres into the uterus is called GIFT.
The highly sophisticated procedure of directly injecting a sperm into an egg is called ______.
Assisted reproductive technology, IVF involves transfer of ______.
Which of the following is ART?
The technique called Gamete Intra Fallopian Transfer (GIFT) is recommended for those females ______.
The first case of IVF-ET technique success, was reported by ______.
ZIFT is transfer of ______.
Mark the odd one.
The stage transferred into the lotuses after induced fertilization of ova in the laboratory is ______.
ZIFT stands for ______
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.
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.
The ______ is also called the womb.
Explain any two ways by which IUDs devices act as contraceptives.
