Define the reversion and missense mutation

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Reference no: EM13231003

1) The E. coli gene lacYencodes a protein called lactose permease, needed for digestion of lactose. A mutation in this gene at codon 64 changed the normalglycine codon into a valine codon. The mutant protein isnon-functional. However, function is restored by a second mutationthat changes codon 50 from an alanine codon to a threonine codon.Are the following terms appropriate or inappropriate to describethis second mutation? Briefly explain each answer.

a. Reversion

b. Intragenic suppressor

c. Intergenic suppressor

d. Missense mutation

Reference no: EM13231003

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