Gyrase (Topoisomerase II)

question 76

Multiple Choice

Gyrase (topoisomerase II)

• A) unwinds double stranded DNA by breaking base pairs
• B) will increase the writhing number of negatively supercoiled DNA
• C) will increase the linking number of negatively supercoiled DNA
• D) nicks one strand of double stranded DNA
• E) cuts both strands of double stranded DNA

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Definitions:

Human Larynx

A crucial structure in the neck comprising vocal cords, it plays a key role in breathing, swallowing, and producing sound.

Primary Bronchus

The major air passage that branches from the trachea into the lungs, dividing into smaller bronchi.

Alveoli

Small air sacs in the lungs where gas exchange between the air and blood occurs.

Hilus

A part of an organ where blood vessels, nerves, and other structures enter or exit.