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Guanine (G) — Edexcel Biology Definition | GradeGen.AI

Courses
Biology
Key Terms
Guanine (G)

GCSEEdexcel1BI0

Guanine (G)

Key term for Edexcel GCSE Biology, used in Reproduction and DNA.

Definition

A nitrogenous base that always pairs with Cytosine.

Exam Context

Guanine (G) appears in Edexcel GCSE Biology revision content for Genetics, especially Reproduction and DNA and DNA Structure.

Genetics Reproduction and DNA DNA Structure

Found in Revision Notes

Genetics

DNA Structure

Reproduction and DNA • DNA Structure

Related Key Terms

Adenine (A)Antiparallel Complementary base pairing Cytosine (C)

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Deoxyribose sugar

DNA (Deoxyribonucleic Acid)