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Explore: How DNA Copies Itself

Part of DNA Genome · GCSE GCSE Biology revision

This diagram covers Explore: How DNA Copies Itself within DNA Genome for GCSE Biology. DNA structure, function, and the human genome It is section 5 of 15 in this topic. Focus on the labels, the relationships between parts, and the explanation that turns the diagram into an exam-ready answer.

Topic position

Section 5 of 15

Practice

25 questions

Recall

25 flashcards

🔁 Explore: How DNA Copies Itself

Before a cell divides, its DNA must be copied so each new cell gets a full set. The same hero diagram tells a second story — tap each dot to see how.

Remember: 1. DNA unzips → 2. Each strand is a template → 3. New nucleotides pair by complementary base pairing → 4. Two identical copies

Keep building this topic

Read this section alongside the surrounding pages in DNA Genome. That gives you the full topic sequence instead of a single isolated revision point.

Explore: DNA StructureFrom DNA to Protein: Transcription and TranslationThe Blueprint of LifeStructure of DNA

Practice Questions for DNA Genome

Which of the following base pairing rules is correct for DNA?

  • A. A-T and C-G
  • B. A-C and T-G
  • C. G-A and C-T
  • D. T-C and G-A
2 marksfoundation

What are the four nitrogenous bases found in DNA?

4 markshigher

Quick Recall Flashcards

What is a gene?
A section of DNA that codes for the production of a specific protein. The sequence of bases in the gene determines which protein is made.
What is an allele?
A different version of the same gene. For example, the gene for eye colour has alleles for brown eyes and blue eyes. Alleles arise due to mutations in the original gene.

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Explore: DNA Structure

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From DNA to Protein: Transcription and Translation