Campbell Biology 11th Edition by Lisa Urry,Michael Cain,Steven Wasserman,Peter Minorsky,Jane Reece

تمرين 5

Which of the following is not true of a codon
A) It may code for the same amino acid as another codon.
B) It never codes for more than one amino acid.
C) It extends from one end of a tRNA molecule.
D) It is the basic unit of the genetic code.