C G A T G C T C A Chromosomes and genes Competition Variation Continuous and discontinuous Variation Summary lesson DNA DNA Discovery Genes and Inheritance inheritance Adaptation DNA is SMALL ID: 911808
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Slide1
DNA Discovery
Describe the contributions of scientists in the discovery of DNA
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Slide2Chromosomes and genes
Competition
Variation
Continuous and discontinuous Variation
Summary lesson
DNA
DNA Discovery
Genes and Inheritance!
inheritance
Adaptation
Slide3DNA is SMALL…..
Really Small
A strand of DNA is about 2.5 Nanometres across…..
That is
50,000
Times smaller than the width of a human hair!
Slide4So how do we know what it looks like?
4 key scientists!
Maurice Wilkins
Rosalind franklin
James Watson
Francis Crick
Partners
Partners
Slide5Your Task!
Research the 4 key scientists and their work to find out how we discovered DNA’s Structure
Slide6Success Criteria
For
each pair of scientists:
Short piece
of background information on each individual
What was
their contribution to the discovery of DNA’s Structure?
What did they actually
do and how did they work together to achieve this?
Use a PEE
Chain to evaluate their contribution and it’s importance to modern Biology.
Slide7http://www.bbc.co.uk/history/historic_figures/watson_and_crick.shtml
Watson and Crick
1
Slide8http://www.ducksters.com/biography/scientists/watson_and_crick.php
Watson and Crick
2
Slide9http://www.bbc.co.uk/schools/gcsebitesize/science/add_edexcel/cells/dnarev3.shtml
Discovery of DNA
Slide10http://www.chemheritage.org/discover/online-resources/chemistry-in-history/themes/biomolecules/dna/watson-crick-wilkins-franklin.aspx
Discovery of DNA
2
Slide11http://www.dnaftb.org/19/bio-3.html
Franklin