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Molecular Basis of Inheritance — BIOLOGY STD 12 Science — Question

Gujarat BoardEnglish MediumSTD 12 ScienceBIOLOGYMolecular Basis of Inheritance3 Marks
Question
Name the major enzymes involved in DNA replication.
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Answer

The enzymes participating in DNA replication are as follows :
(i) Helicase enzymes : Open the double helix of DNA.
(ii) S.S.B. proteins keep the position stable by associating with single stranded binding proteins.
(iii) Topoisomerase enzymes : Reduce the coiling tension.
(iv) RNA polymerase or primase enzyme (R.N.A. primer) : make small part of RNA to process DNA synthesis.
(v) DNA polymerase III enzyme : work to advance the primer in 5'-3' direction.
(vi) DNA Polymerase I : Fills the spaces found between the DNA.
(vii) Ligase enzymes : Join the DNA fragments.
(viii) Endonuclease and exonuclease enzymes : work to connect the correct nucleotides.

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