Evolutionary accidents (mutations) that modified the third nucleotide base in the codon might have been selected for if they coded for the same amino acid because of the selective advantage of having to make fewer Blank.target 1 of 4

Question

This could account for Blank. Since one Blank can bind to several Blank, there is an advantage for all those codons to code for the same amino acid.

Word bank:
tRNAs
genes
tRNA anticodon(s)
wobble
shuffling
mRNAs
mRNA codon(s)

Answer 1

Evolutionary accidents (mutations) that modified the third nucleotide base in the codon might have been selected for if they coded for the same amino acid because of the selective advantage of having to make fewer tRNAs. This could account for wobble. Since one tRNA anticodon can bind to several mRNA codon(s), there is an advantage for all those codons to code for the same amino acid.