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DNA structure

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DNA is made up of two strands that coil together

to form a 3D shape of a double helix.
 

 The 2 strands are held together by complementary bases.
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​  Adenine (A) with Thymine (T)      Cytosine (C) with Guanine (G)
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Function of DNA

Genetic (base) code is required for producing specific proteins.
 
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genetic code

protein

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Genes & Chromosomes

DNA is arranged as chromosomes in the nucleus.

Genes are smaller sections of DNA on chromosomes 

that code for 1 specific protein.

 

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