Describe the different methods of embryo transfer.

IVF->In-vitro fertilisation 

in this metod the semen(sperm ) from the donor/husband and ovum from donor/wife are allowed to meet outisde female body   and form zygote  and devolope into an 8 celled morula ,it is transfered to fallopian tube and if it is 8-16 celled morula  transfered to uterus of mother  for further development.

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 1. ZIFT- Zygote Intra Fallopian Transfer

Zygote is formed outside the body of female by fertilization of male and female gamete.

when the size of zygote is 8 blastomere then it is transfer into fallopian tube and called ZIFT.

2. IUT- Intra Uterine Transfer

when the size of zygote is >8 blastomere then it is transfer into uterus and called IUT. 

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An embryo is transferred into the uterus or fallopian tube of the females in the following ways: (i) The zygote or embryo with up to 8 blastomeres is transferred into the fallopian tube. This is called zygote intra-fallopian transfer (ZIFT).
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