Multiple choice

Which among the following enzymes plays a vital role in plasmid recombination and in DNA repair processes in prokaryotes?

  1. DnaB helicase

  2. RecQ helicase

  3. Transmembrane ATPases

  4. ATP synthase

  5. Kynureninase

Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

In prokaryotes, RecQ is necessary for plasmid recombination and DNA repair from UV-light, free radicals and alkylating agents. This protein can also reverse damage from replication errors. In eukaryotes, replication does not proceed normally in the absence of RecQ proteins, which also function in aging, silencing, recombination and DNA repair.