NEET Biology Molecular Basis Of Inheritance Based Practice Questions & Answers with Viewers Discussion and Detailed Explanation

Molecular Basis Of Inheritance Topic Based

Question & Answer Discuss:

The okazaki fragments in DNA chain growth

(a) prove semi-conservative nature of DNA replication

(b) polymerize in the 3’ - to - 5’ direction and forms replication fork

(c) polymerize in the 5’ - to - 3’ direction and explain3’ - to - 5’ DNA replication

(d) result in transcription.

Answer: (c)

Okazaki fragments in DNA are linked up by the enzyme DNA ligase. Replication always occur in 5' - 3' direction. Okazaki fragments synthesized on 3' - 5' DNA template, join to form lagging strand which grows in 3' - 5' direction.

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