The Most Important Feature That Permits a Gene to Act

question 34

Multiple Choice

The most important feature that permits a gene to act as a molecular clock is

• A) having a large number of base pairs.
• B) having a larger proportion of exonic DNA than of intronic DNA.
• C) having a reliable average rate of mutation.
• D) its recent origin by a gene-duplication event.
• E) its being acted upon by natural selection.

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