Question: Why does Wobble base pairing exist? 1) due to the presence of Shine-Delgarno sequence 2) due to the presence of only 30-45 tRNA for the 61 codons available 3) jelly on a plate, jelly on a plate wibble wobble, wibble wobble, jelly on a plate! 4) due to the ambiguity of one codon specifying one tRNA 5) due to the redundancy of 20 amino acids being signalled by 61 different codons