The mechanism of transcription has parallels in that of DNA replication. As with DNA replication, partial unwinding of the double helix must occur before transcription can take place, and it is the RNA polymerase enzymes that catalyze this process.

Is replication part of transcription and translation?

The replication of DNA is semi-conservative and depends on complementary base pairing. ... Transcription is the synthesis of mRNA copied from the DNA base sequences by RNA polymerase. Translation is the synthesis of polypeptides on ribosomes.

Can transcription and replication happen at the same time?

This model implies that DNA replication and transcription occur simultaneously on the same DNA template. (B) In the cotranscriptional R-loops model, RNA-DNA hybrids formed during transcription interfere with replication fork progression and induce TAR.