Histones Have "Tails" Capable of Receiving Signals That Can Either

question 9

True/False

Histones have "tails" capable of receiving signals that can either loosen up the packed DNA strands, making them more available for copying, or keep them wrapped up tightly and thus less available for copying.

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Definitions:

Aortic Semilunar Valve

A valve in the heart located between the left ventricle and the aorta that prevents blood from flowing back into the heart.

Mitral Valve

A valve in the heart that lets blood flow from the left atrium to the left ventricle, preventing backflow.

Tricuspid Valve

Valve closing the orifice between the right atrium and the right ventricle of the heart.

Pulmonary Semilunar Valve

A valve in the heart located between the right ventricle and the pulmonary artery, preventing backflow of blood into the heart.