the nature of the genetic code

Question 1

The genetic code

Answer 1

sequence of bases along its DNA
contains thousands of sections called genes or cistrons
each gene codes for a specific polypeptide
universal
3 base sequence of triplet codes for each amino acid
non-overlapping

Question 2

Degenerate code

Answer 2

some amino acids are coded for by more
than one base triplet
more possible combinations of triplet codes than there are amino acids
not all base triplets code for amino acids
some used to tell ribosome when to stop production of a protein, stop signals, end of mRNA
start signals, code for methionine