Some of Your DNA May Not Code for Any Protein

question 59

Multiple Choice

Some of your DNA may not code for any protein and has no known function in gene regulation; it is sometimes referred to as noncoding DNA. How do nucleotide sequences of "noncoding DNA" evolve?

• A) They evolve through natural selection.
• B) They evolve through genetic drift and other chance processes.
• C) They evolve to be more useful by taking on new functions.
• D) They evolve by gradually being eliminated from the gene pool.

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