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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
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.
Fill in the blank:
Sperm fertilizes ovum in the _______of fallopian tube.
Fill in the blank:
The hormone produced by the testis is _______.
Short answer question.
Write a note on IVF.
Identify the IUD in the given diagram.
Correct the following statement.
Transfering of an embryo with more than 8 blastomeres into the uterus is called GIFT.
The procedure of GIFT involves the transfer of female gametes into the fallopian tube, can gametes be transferred to the uterus to achieve the same result? Explain.
The method of directly injecting a sperm into ovum in assisted by reproductive technology is called ______.
A childless couple can be assisted to have a child through a technique called GIFT. The full form of this technique is ______.
ZIFT is transfer of ______.
Mark the odd one.
What is correct for test tube baby?
ZIFT stands for ______
Briefly explain IVF and ET What are the conditions in which these methods are advised?
What are the Assisted Reproductive Techniques practised to help infertile couples? Describe any three techniques.
Trace the events from copulation to zygote formation in a human female.
Write the long form of GIFT.
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 |
