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Biology period 3
Mr Guy
DNA
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By Reuben Jones
INTRODUCTION
Dna stands for Deoxyribonucleic acid it is made of DNA is the complex chemical that carries
genetic information
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The gene is the unit of inheritance and different forms of the same gene are called
alleles
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The double helix structure helps lots of it to be tightly packed inside each
cell
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These bases only
pair with their specific match , A with T and C with G
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They consist of long
strands of a substance called deoxyribonucleic acid, or DNA for short
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The gene is the unit of inheritance, and each chromosome may have several thousand genes
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The genes on those chromosomes carry the code that determines our physical characteristics,
which are a combination of those of our two parents
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Franklin produced an x-ray photograph that allowed two other researchers, James Watson
and Francis Crick to work out the 3D structure of DNA
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In 1962 Crick and Watson, along with Wilkins, received the Nobel Prize in Physiology or
Medicine for their discovery
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