The genetic code is described as degenerate, universal and overlapping. Explain these terms.

The genetic code is universal because all species use the same four bases A,T,C and G, and each base sequence codes for the same amino acid in all species. despite the 64 possible codons (sequence of three bases), there are only 20 possible amino acids. This means that multiple codons code for one amino acid, meaning the code is degenerate. Overlapping refers to how the code is read. The first three bases are read as one codon, then the next three as the second etc, therefore each base is read only once and the bases do not overlap.

EW
Answered by Emily W. Biology tutor

49433 Views

See similar Biology A Level tutors

Related Biology A Level answers

All answers ▸

What is meant by the term "degenerate" when describing DNA? Why does it occur and what are its implications for protein structure?


What is neurotransmission and how does a chemical synapses work?


Describe the stages of the europhication process (6 marks)


What is the difference between DNA and RNA?


We're here to help

contact us iconContact ustelephone icon+44 (0) 203 773 6020
Facebook logoInstagram logoLinkedIn logo

MyTutor is part of the IXL family of brands:

© 2026 by IXL Learning