Question

Which is the correct order for DNA replication

A. split --> hold open --> replicate --> 2 DNA strands
B. hold open--> replicate--> split ---> 2 DNA strands

Answer 1

The correct order for DNA replication is:

B. Hold open --> Replicate --> Split --> 2 DNA strands

During DNA replication, the double-stranded DNA molecule first "unzips" or "holds open" at the origin of replication. The replication process then takes place in which the DNA polymerase enzyme adds nucleotides to the template strands, forming new complementary strands. This results in two identical DNA molecules, each with one old and one new strand. Finally, the two DNA strands separate completely, creating two identical daughter DNA molecules.