In Every Cell of the Body, About 100 Cytosine Residues

question 1

Multiple Choice

In every cell of the body, about 100 cytosine residues in the DNA are deaminated to uracil per day.The enzyme that recognizes this kind of damage and catalyzes the first reaction in the repair pathway is:

• A)An exonuclease.
• B)A DNA glycosylase.
• C)AP endonuclease.
• D)A topoisomerase.
• E)A helicase.

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Definitions:

Communications Process

The sequence of steps through which information is exchanged or conveyed from a sender to a receiver, involving encoding, transmission, and decoding of messages.

Communication Process

The transfer of information from a sender to a receiver through a medium, involving encoding, message transmission, reception, and decoding.

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Channel of Communication

The medium through which a message is transmitted from the sender to the receiver, such as email, phone, or face-to-face.