MCQ
DNA replication is aided by:
- ADNA polymerase only
- BDNA ligase only
- CBoth DNA polymerase and ligase
- DRNA polymerase
Explanation:
DNA polymerase catalyes the formation of DNA strand. DNA ligase is otherwise called as molecular sutures. 5'→3' strand synthesis happens with the help of DNA Polymerase I. Synthesis of strand in 3' → 5' strand happens by the formation of okazaki fragments. These fragments are further joined together by the action of DNA ligase enzyme.
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$I.$ very long molecule
$II.$ double-stranded
$III. DNA$ or $RNA$
$IV$. complementary to a part of desired gene
The correct pair is