Select the incorrect option from the followin | vedclass

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(A) $DNA$ polymerase is an enzyme that requires a primer to initiate the synthesis of a new $DNA$ strand. It cannot start the replication process on i

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$DNA$ polymerase can initiate replication by itself.

Vedclass · Answer

(A) $DNA$ polymerase is an enzyme that requires a primer to initiate the synthesis of a new $DNA$ strand. It cannot start the replication process on its own because it requires a free $3'-OH$ end to add nucleotides. Therefore,option $A$ is incorrect. The origin of replication is the specific sequence where replication begins,which is true. Plasmids are extrachromosomal $DNA$ molecules that contain an origin of replication,allowing them to replicate independently. Polyploidy is a condition where an organism has more than two sets of chromosomes,often resulting from the failure of cytokinesis (cell division) after $DNA$ replication.

Select the incorrect option from the following.

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