Biology A (Salters-Nuffield) A-Level

Triplet code

What Triplet code means in Biology A (Salters-Nuffield) A-Level, as defined for Pearson Edexcel.

Definition of Triplet code

Check what you remember

Read the wording for your board, then hide it and explain Triplet code in your own words. Rough notes are fine. This is a self-check, with no mark or grade.

Reference: Pearson Edexcel

Every three bases, called a codon, on mRNA specifies one amino acid.

Pearson Edexcel · Topic 2: Genes and Health

Topics that use Triplet code

Topic 2: Genes and Health (Pearson Edexcel A-Level)

Related terms

Using Triplet code in the exam

Check the command word and mark scheme for your exact question. After comparing your explanation with the reference, use the term in an answer on the linked topic. This practice does not predict an exam mark.

Practise Biology A (Salters-Nuffield) questions

Create a free account to answer exam-style questions on this topic and get feedback on your answers.

Start free

A week of Premium from your first lesson · Then the free plan continues · No card, no charge

All Biology A (Salters-Nuffield) A-Level terms