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Background Information about DNA
Chromosomes are structures in the nucleus of a cell and are composed of long strands of deoxyribonucleic acid (DNA). In 1953, two scientists, 
James D. Watson and F.H.C. Crick, proposed a model of the structure of the complex DNA.Chromosomes are structures in the nucleus of a cell and are composed of long strands of deoxyribonucleic acid (DNA). In 1953, two scientists, 
James D. Watson and F.H.C. Crick, proposed a model of the structure of the complex DNA.
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Suleyman Gecmenler,
Apr 11, 2014, 6:12 AM
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nimra hassan,
Apr 7, 2014, 3:46 PM
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nimra hassan,
Apr 7, 2014, 3:54 PM
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