NEET Botany Molecular Basis of Inheritance Questions Solved

NEET - 2007

The Okazaki fragments in DNA chain growth:

(1) result in transcription

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

(3) prove semi-conservative nature of DNA replication

(4) polymerize in the 5’-to-3’ direction and explain 3’-to-5’ DNA replication

(4)Okazaki fragments in DNA are linked up by the enzyme DNA ligase. Replication alays ocur in 5′ – 3′ direction. Okazaki fragments synthesised on 3′ – 5′ DNA template, join to form lagging strand which grows in 3′ – 5′ direction.

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