How many bases code for one amino acid?

There are 64 codons in the genetic code dictionary. (i)How many of them code for amino acids? (ii) How many amino acids are coded? (iii) What term would you give to those codons, which do not code for amino acids?

How many codons code for amino acids ? (a) 64 (b) 61 (c) 68 (d) 60

A sequence of three nitrogen bases that code for an amino acid is a ..................

(a) How many codons code for amino acids and how many are unable to do so ? (b) Why are codes said to be (i) degenerate and (ii)unambigous ?

(a) How many codons code for amino acids and how many are unable to do so ? (b) Why are codes said to be (i) degenerate and (ii)unambigous ?

Instead of 3, if 2 bases code for an amino acid, the degeneracy of codons coding for the same amino acid would have :

Which base triplets code for the amino acid phenylalanine ?