InterviewSolution
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State the role of any four enzymes involved in the process of DNA replication. |
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Answer» Enzymes taking part in Replication Four different enzymes have been reported which are given below : Exonuclease : This enzyme breaks down the hydrogen bonds coupling nitrogenous bases in DNA molecules so that both the chains get apart during replication. Endonuclease: This enzyme breaks down the chain or chains of DNA molecule. Whenever it appears, it results in dispersive type of replication. Polymerase or replicase enzyme: It catalyses the formation of one polynucleotide chain that is a copy of another (complementary chain). This new chain is synthesized from the raw material already present in nucleoplasm. Ligase: This enzyme is used in the formation of bonds between the nitrogenous bases such as A = T and C = G. Whenever the appearance of the enzyme is delayed, conservative type of replication results. |
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