Complementary base pairing

Definition

The specific matching of DNA bases: adenine pairs with thymine, while cytosine pairs with guanine.

Used by Edexcel and OCR

Specification 3.4, 3.8B · Paper 1

Revise: DNA Structure
A relationship in which bases pair specifically: during transcription, DNA adenine pairs with RNA uracil, while cytosine pairs with guanine.
Revise: Transcription: Non-coding DNA and mRNA Synthesis

Specification B1.2c · Paper 1 (Foundation), Paper 3 (Higher)

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The specific pairing of bases between DNA strands: adenine with thymine, and guanine with cytosine.