Question

What is the origin of replication?

(a) Particular site at which DNA replication starts

(b) Site which prevents initiation

(c) Random location on the DNA

(d) Site at which replication terminated

This question was posed to me in a national level competition.

Enquiry is from DNA Replication in chapter Molecular Genetics of Life Sciences

Answer 1

Correct choice is (a) Particular site at which DNA replication starts

The explanation is: Origin of replication is particular sites on DNA as replication does not start at random sites. Replication starts from a particular site and proceeds bidirectionally or unidirectionally till the terminus site.