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Questions  

Choose the correct statement with respect to replication of DNA. 

a
DNA polymerase III can initiate the formation of daughter DNA strand on template DNA strand.
b
Eukaryotic chromosomes have only one replicon per chromosome
c
DNA replication is unidirectional
d
A primer is required for the formation of daughter DNA strand on template DNA strand

detailed solution

Correct option is D

DNA polymerase III can not initiate the synthesis of daughter DNA strand on template DNA strand. It can elongate the polynucleotide strand by attaching deoxyribonucleotides to the primer in 5ʹ → 3ʹ direction. Primer is attached by Primase (RNA polymerase) by recruiting few ribonucleotides over the template DNA strand at ori which was originally separated by helicase.

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