Molecular Clocks Are More Reliable When ________

question 64

Multiple Choice

Molecular clocks are more reliable when ________.

• A) the surrounding pH is close to 7.0
• B) most mutations of highly conserved DNA sequences should have no functional effect
• C) the DNA codes for amino acid sequences whose side groups (or R groups) have a neutral pH
• D) a significant proportion of mutations are not acted upon by natural selection

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