All the following statements are correct features of the genetic code except...

a) the genetic code is universal as all living organisms use the three-letter code of nucleotides of DNA molecules
b) the three-letter code cannot be transferred from animals to plants nor from animals to single-celled organisms such as bacteria
c) it contains a series of three-letter codons beginning with a start code and ending with a stop codon
d) it can be redundant in that there is more than one three-letter code for a specific amino acid

HINT: All life recognized this code. That's the reason genetic engineering can be so successful.