What is the process in which a DNA copies itself?? - ProProfs Discuss
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What is the process in which a DNA copies itself??

This question is part of Science Quiz: DNA
Asked by Kewlsportsgirl, Last updated: Jan 18, 2019

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2 Answers

A. Lucius

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A. LuciusSenior Content writer, Diploma in Literature, Dover, Delaware
Senior Content writer, Diploma in Literature, Dover, Delaware

Answered on Nov 01, 2019

The correct answer is – Replication. The process by which DNA copies itself is known as REPLICATION. The process starts with the unwinding of the double helix structure by the enzyme known as helicase. Helicase works by breaking the hydrogen bonds between the complementary base pairs. The unwinding of the DNA double helix creates the Y shaped known as the replication fork. The leading strand is the strand positioned in the 3’ to 5’ direction, and the lagging strand is oriented in 5’ to 3’ direction.

The enzyme primase adds RNA primer, which acts as the start point for DNA synthesis. DNA polymerase adds a new complementary nucleotide to the new strand made on the leading strand. The new strand is made in a 5’ to 3’ strand. On the lagging strand, RNA primers are added at different points for DNA to be synthesized. The fragments of DNA produced are called Okazaki fragments. In the end, RNA primers are removed, and DNA ligase joins the fragments of DNA together.

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kewlsportsgirl

Kewlsportsgirl

Answered on Oct 10, 2017

Replication
Replacation
Repliciation
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