Saved Bookmarks
| 1. |
There is only one possible sequence of amino acids when deduced from a given nucleotide. But multiple nucleotide sequences can be deduced from a single amino acid sequence. Explain this phenomenon. |
|
Answer» Some amino acids are coded by more than one codon (known as degeneracy of codon), hence on deducing a nucleotide sequence from an amino acid sequence, multiple nucleotide sequences will be obtained. For example, isoleucine has three codons AUU, AUC and AUA. Hence a dipeptide Met– Ile can have any of the following nucleotide sequences: i. AUG–AUU ii. AUG–AUC iii. AUG–AUA If we deduce amino acid sequences of the above nucleotide sequences, all the three will code for Met–Ile. |
|