Heinz Fraenkel-Conrat induced point mutations in the genes encoding coat proteins of TMV and looked for changes in the resulting proteins. By examining the effect of single-base changes in the mRNA on the amino acid sequence, Conrat proved that __________.
A) the genetic code is overlapping
B) the genetic code is nonoverlapping
C) the genetic code is redundant
D) there are 20 amino acids
E) the genetic code is triplet
Correct Answer:
Verified
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