Reproductive Health

In in vitro fertilisation (IVF), ova from the wife or donor and sperms from the husband or donor are collected and induced to form a zygote under simulated conditions in the laboratory. This is followed by embryo transfer (ET).
The zygote or early embryos with up to 8 blastomeres are transferred into the Fallopian tube; this is ZIFT (zygote intra Fallopian transfer).
Embryos with more than 8 blastomeres are transferred into the uterus; this is IUT (intra uterine transfer).
Hence IVF involves transfer of either the zygote or an early embryo up to the 8-cell stage into the Fallopian tube.

In amniocentesis a small amount of amniotic fluid surrounding the developing foetus is withdrawn.
The foetal cells and dissolved substances in it are analysed to detect genetic disorders such as Down's syndrome, haemophilia and sickle-cell anaemia, and to judge the survivability of the foetus.
The same test can reveal the sex of the foetus from its chromosome pattern, and it was misused for female foeticide; sex determination by this technique is therefore statutorily banned.
It has nothing to do with artificial insemination or embryo transfer.
Hence the permissible use of amniocentesis is for detecting any genetic abnormality.