Difference between $ZIFT$ and $IUT$ lies in the
Methodology
Nature of the sperms
Nature of the cells
Number of the cells
The technique called Gamete Intra Fallopian Transfer $(GIFT)$ is recommended for those females
$IVF$ in which zygote with ...$A$... than $8$ blastomere is transferred into female body it is called $\ldots B \;ldots .$
Surrogate mother is used for
In reproduction of a test tube baby
Surrogate mother is