A Mutation Changes a Codon from AAA (Encoding Lysine)to AGA

question 51

Multiple Choice

A mutation changes a codon from AAA (encoding lysine) to AGA (encoding arginine) in yeast,but no mutant phenotype is detected when the mutant strain is plated and grown on minimal or complete medium.This type of mutation is called:

• A)synonymous.
• B)suppressor.
• C)nonsense.
• D)missense.
• E)frameshift.

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