Explore topic-wise MCQs in Molecular Biology.

This section includes 10 Mcqs, each offering curated multiple-choice questions to sharpen your Molecular Biology knowledge and support exam preparation. Choose a topic below to get started.

Explore topic-wise MCQs in Molecular Biology.

After the binding of polymerase to the DNA template the σ factor is ejected.

The ternary complex is formed by the polymerase, DNA duplex and the nascent RNA.

RNA polymerase adds the nucleotides de novo. The first nucleotide added by the polymerase is ____________

Region 1.1 of the σ factor mimics the DNA and is negatively charged.

The channel that allows the exit of the coding strand is known as ____________

How many channels are found in the RNA polymerase clamp?

With respect to the formation of a complex between polymerase and DNA template which of the following is correct?

The isomerisation of σ70 of bacterial polymerase is an energy dependent process.

To facilitate binding of σ70 the melting of the template and non – template strands occurs between the positions ____________

Without using primers for RNA synthesis the polymerase produces small stretches of RNA of _____________ nucleotides.