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Q.

In DNA replication , RNA primer is removed by 

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a

DNA polymerase -II

b

DNA polymerase-I

c

DNA polymerase -III

d

Primase

answer is B.

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Detailed Solution

Removal of RNA primers and joining of Okazaki fragments occurs during DNA replication . Because of its 5′ to 3′ exonuclease activity, DNA polymerase I removes RNA primers and fills the gaps between Okazaki fragments with DNA.

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In DNA replication , RNA primer is removed by