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The four DNA nucleotides

The four DNA nucleotides

A nucleotide is the repeating unit, or monomer, from which DNA is built. Each DNA nucleotide contains a deoxyribose sugar, a phosphate group and one base.

1.2.2 Nucleotides and complementary bases Lesson

  1. GCSE
  2. /Biology
  3. /1.2.2 Nucleotides and complementary bases

Step-by-step lessons on OCR GCSE Biology 1.2.2 Nucleotides and complementary bases. Each one builds up to exam-style questions. Start with the foundational topics and build up to the higher-tier material.

Lessons