Explain what is meant when the genetic code is described as 'degenerate'.

DNA is made up of sequence of nucleotides ( a phosphate, a pentose sugar and nitrogenous base). It is the sequence of bases on the DNA strand that codes for proteins. A sequence of three bases is called and codon and this represents one amino acid in the polypeptide. The genetic code is described as degenerate because often, more than one codon codes for the same amino acid.

SB

Related Biology A Level answers

All answers ▸

I don't understand how muscle contraction starts, can you explain it?


What are the different stages of mitosis and what do they consist of?


Describe Gaseous exchange in the alveoli of the lungs


Using knowledge of the pathogenicity of HIV, explain why it can't be transmitted through inanimate objects or hand shakes with an infected person.