$A$ : Inability to conceive or produce children even after $2\; years$ of unprotected sexual cohabitation is called infertility.
$R$ : Infertility is synonym for sterility
Assertion and Reason both are correct and also correct explanation.
Assertion and Reason both are correct but not explanation of assertion.
Assertion is correct, but Reason is incorrect.
Both Assertion and Reason are incorrect.
Give differences : $\rm {ZIFT}$ method and $\rm {GIFT}$ method
$A$ : In test-tube baby programme, ova from wife/donor (female) and sperms from the husband/donor (male) are collected and induced to form zygote under simulated conditions in laboratory.
$R$ : Embryos with more than 8 blastomeres are then transferred to fallopian tube $(ZIFT)$ to complete its further development.
Infertile couples can produce a baby with the help of
Primary infertile female is the person who;
The first case of $IVF-ET$ techniques success, was reported by: