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Molecular Basis of Inheritance

In DNA replication, discontinuously synthesized DNA fragments are later joined by
A. DNA polymerase
B. DNA ligase
C. DNA Gyrase

B. DNA ligase

Replication of lagging strand generate small polynucleotide fragments called Okazaki fragments [after R. Okazaki, who first identify them].
These Okazaki fragments are then joined together by an enzyme called DNA ligase.

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