A Mutation Has Occurred During DNA Replication While the Cell

question 69

Multiple Choice

A mutation has occurred during DNA replication while the cell was preparing to divide. As a result of this, the codon ACU of mRNA has now become ACC. Interestingly, there is no change to the protein being made. Why not?

• A) This is a silent mutation.
• B) The original amino acid isoleucine was changed to leucine, but they are the same variation of amino acid so no change to the protein.
• C) The mutation was ?xed, and even though the codon is now ACC the correct amino acid is put into place for the normal protein.
• D) This is not a mutation that causes a big change, so there is no change to the protein being made.

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Boolean operators are logical terms used in search engines and databases (such as AND, OR, and NOT) to refine and manipulate search results based on specific criteria.