Triplet basing and genetic code

Question 1

DNA bases exist in

Answer 1

triplets

Question 2

Codon

Answer 2

Triplet of three baes on mRNA which code for a specific amino acid

Question 3

Degenerate genetic code

Answer 3

There are 64 base combination but 20 amino acids
Some amino acids have more than one codon
e.g proline is coded by the triplets CCG ,CCA CCC, CCU

Question 4

Non-overlapping genetic code

Answer 4

Each base is only one codon
Triplet codons are read in one direction
Each base is only read once

Question 5

Universal genetic code

Answer 5

All organisms on earth have the same genetic code
The same codon always code for the same amino acids

Question 6

Coding sequence

Answer 6

Always starts with the same codon AUG - This is the start codon
There are three codons that do not code for amino acids and mark the end of coding sequences to stop translation - these are the stop codons - UGA UAA UAG