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Inheritance & EvolutionVery High Exam FrequencyAQAEdexcelOCRWJEC

DNA Genome

DNA structure, function, and the human genome

What you'll cover

  • DNA structure and base pairing
  • Chromosomes and genes
  • Human genome project
  • DNA mutations and their effects

Study this topic

1

The Blueprint of Life

Introduction2

Structure of DNA

Key Facts3

Why Study the Genome?

Key Facts4

Explore: DNA Structure

Diagram5

Explore: How DNA Copies Itself

Diagram6

From DNA to Protein: Transcription and Translation

Deep Dive7

How It Works: DNA to Protein

How It Works8

Key Definitions

Definitions9

Common Misconceptions

Misconceptions10

Memory Aids

Memory Aid11

Grade 7-9 Mutations and Protein Function

Higher Tier12

Higher The Human Genome Project and Its Applications

Higher Tier13

Exam Focus

Exam Focus14

Knowledge Organiser

Summary15

Exam Tips: DNA and the Genome

Exam Tips

Sample 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.

Exam 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

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