Which of the Following Is TRUE Regarding How the DNA

question 15

Multiple Choice

Which of the following is TRUE regarding how the DNA in your body's cells can accumulate mutations?

• A) The ultraviolet radiation in sunlight may induce changes in DNA.
• B) Some DNA spontaneously breaks down every second, making the chromosome significantly shorter with every passing day.
• C) Mistakes are never made during DNA replication; they always occur during the G1 phase of interphase.
• D) Spontaneous mutation rates are around one in every four nucleotides that are replicated.

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Definitions:

Ethyne

A colorless gas with a sharp, distinct odor; the simplest alkyne, it is a hydrocarbon with the formula C2H2.

Acetylene

A hydrocarbon and the simplest alkyne, used as a fuel and a chemical building block, recognized by its formula C2H2.

Covalently Bonded Molecule

A molecule whose atoms are held together by covalent bonds, which involve the sharing of electron pairs between atoms.

Hydrogen

The first element on the periodic table, with the symbol H, known for being the lightest and most abundant chemical element in the universe.