Answer:
More than one mRNA codon,
Amino acid
tRNA
tRNAs
Step-by-step explanation:
An amino acid acids are normally specified by one mRNA codon. Redundancy occurs when more than one mRNA codon specify one Amino acid.
Wobble pairing explains how its possible fore one tRNA to read more than one one codon. tRNA has anti-codons that bind to specific mRNA and in wobble pairing after the first two positions are paired the third binding will be more loose.
Wobble pairing allows a redundant code to be read by a small number of tRNA.