A base substitution mutation in a gene sometimes has no effect on the – McqOptions

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1.	A base substitution mutation in a gene sometimes has no effect on the protein the gene codes for. Which of the following factors could account for this?
A.	the rarity of such mutations
B.	some amino acids have more than one codon
C.	a correcting mechanism that is part of the mRNA molecule
D.	A and B
Answer» C. a correcting mechanism that is part of the mRNA molecule

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