Answer:
Infertile couples may be helped to have children by the following techniques:
Technique
Working
1. In-vitro fertilization Embryo transfer (IVF-ET) technique
• ZIFT (Zygote intra fallopian transfer)
• IUT (Infra-uterine transfer)
Ovum of female and sperms of male are induced to form zygote in a culture medium and then embryo is transferred in the female for further developments.
It is of two types:
Embryo is transferred in the fallopian tube of female at the stage of 8 blastomeres.
Embryo is transferred in the uterus at 32-elled stage.
2. GIFT (Gamete intra fallopian transfer)
Transfer of an ovum of a female into fallopian tube of another female for fertilization by sperms of former's husband.
3. ICSI (Intra-cytoplasmic sperm injection)
Sperm of male is directly injected into ovum of female.
4. AI (Artificial insemination)
Sperms of husband (AIH) or a donor male are artificially introduced into the vagina or uterus of the female.
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