MCQ
The most commonly used enzyme for polymerase chain reaction is
- A$D.N.A. $ polymerase-$II$
- BReverse transcriptase
- CKlenow fragment
- ✓Taq polymerase
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$I$. They inhibit ovulation and implantation
$II$. They alter the quality of cervical mucous to prevent or retard the entry of sperms
$III$. They prevent the ejaculated semen from entering the female vagina
$IV$. They inhibit spermatogenesis
$R$ : Different varieties of cheese are known by characteristic texture, flavour and taste.