The inability of a couple to produce children even after $3$ years of unprotected sexual cohabitation is called .........

Which of the following is the correct full form of the abbreviation $ZIFT$?

Difference between $ZIFT$ and $IUT$ lies in the

What is performed in $ICSI$ (Intracytoplasmic Sperm Injection)?

The procedure of $GIFT$ involves the transfer of a female gamete into the fallopian tube. Can gametes be transferred to the uterus to achieve the same result? Explain.

$A$: Inability to conceive or produce children even after $2$ years of unprotected sexual cohabitation is called infertility.
$R$: Infertility is a synonym for sterility.