The discovery of the structure of DNA
I can describe how scientists collected evidence and shared findings to develop a model to describe the structure of DNA.
The discovery of the structure of DNA
I can describe how scientists collected evidence and shared findings to develop a model to describe the structure of DNA.
These resources will be removed by end of Summer Term 2025.
Lesson details
Key learning points
- DNA was discovered in 1869, but scientists did not work out its structure until 1953.
- Scientists collected evidence and shared findings to develop a model to describe the structure of DNA.
- Rosalind Franklin’s team in London used X-rays to produce an image of a DNA molecule in1952.
- Maurice Wilkins from Franklin’s group showed the picture to James Watson from Cambridge.
- Watson and Francis Crick used the picture evidence to complete a model to describe the double helix structure of DNA.
Keywords
DNA - DNA is the chemical substance that genetic material is made out of; it stores the genetic code.
X-ray - An X-ray is a form of radiation that can be used for creating images.
Double helix - DNA has a double helix structure made from two chains in a spiral.
Genome - The genome is all of the genetic material of a cell.
Common misconception
DNA was discovered by Watson and Crick.
The lesson explores the work of various scientists in developing our understanding of DNA, including Rosalind Franklin.
To help you plan your year 7 science lesson on: The discovery of the structure of DNA, download all teaching resources for free and adapt to suit your pupils' needs...
To help you plan your year 7 science lesson on: The discovery of the structure of DNA, download all teaching resources for free and adapt to suit your pupils' needs.
The starter quiz will activate and check your pupils' prior knowledge, with versions available both with and without answers in PDF format.
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Explore more key stage 3 science lessons from the Heredity and DNA unit, dive into the full secondary science curriculum, or learn more about lesson planning.
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Lesson video
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Starter quiz
6 Questions
Exit quiz
6 Questions
