In vitro fertilisation is a technique that involves transfar of which one of the following into the Fallopian tube ?
A. embryo only, up to 8 cell stage
B. either zygote or early embryo up to cell stage
C. embryo of 32 cell stage
D. zygote only

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1 Answers

Correct Answer - B
In vitro fertilisation (IVF) or test-tube baby technique involes fertilising one or more eggs outside the body and then transfering the fertilised eggs known as pre-embryos back into the uterus.
Zygote intra Fallopian transfer (ZIFT) is an example of IVF. In this, the zygoye or early embrtyos up to 8 blastomers are transfered into the fallopian tube. If the embryo has more than 8 blastomeres then it is transferred into uterus this is known as IUT.

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