Hyperthermophilic archaea possess an unusual gyrase called __________, which introduces positive supercoils into the chromosome.

Question

Quizplus · Accepted Answer

The question describes an unusual gyrase in hyperthermophilic archaea that introduces positive supercoils into the chromosome. This description matches the function of reverse DNA gyrase, which is unique to archaea and is involved in increasing DNA stability under high temperature conditions. DNA ligase joins two strands of DNA after they have been cut, DNA helicase unwinds the double-stranded DNA, topoisomerase alters the topology of DNA, and reverse transcriptase copies RNA into DNA. Thus, reverse DNA gyrase is the best choice for this question.

Hyperthermophilic Archaea Possess an Unusual Gyrase Called __________, Which Introduces