Which of the Following Spontaneous Lesions in DNA Occurs Most

question 12

Multiple Choice

Which of the following spontaneous lesions in DNA occurs most frequently in a mammalian cell?

• A) Depurination
• B) Cytosine deamination
• C) Guanine oxidation
• D) Guanine alkylation
• E) Depyrimidination

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Definitions:

Micrometer

A unit of length in the metric system equal to one millionth of a meter, also used as a device for precise measurements of small distances.

Nanometer

A unit of length in the metric system, equal to one billionth of a meter, often used to measure wavelengths of light and dimensions of molecules.

Picometer

A unit of length in the metric system, equal to one trillionth of a meter, used to measure extremely small distances.

Nucleolus

Specialized structure in the cell nucleus formed from regions of several chromosomes; site of assembly of the ribosomal subunits.