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Double helix


The term Double helix (plural helices) describes the structure of DNA as first published by James Watson and Francis Crick in 1953. They showed that DNA is made up of two complementary, antiparallel strands of the bases Guanine, Adenine, Thymine, and Cytosine, covalently linked through phosphodiester bonds. Each strand forms a helix, and the two helices are held together through hydrogen bonds, ionic forces, hydrophobic interactions, and van der Waals forces forming a double helix.


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(Date:11/6/2009)...versary this month of the publication of On the Or...cal Sciences (AIBS) is publishing open access two ...s historic insights into evolution. , The two art...ifornia, Berkeley, and James T. Costa of Western C...bout Charles Darwin," appeared in the October issu...
(Date:11/6/2009)...wire/ -- Auburn Hills, MI-based Law Enforcement In...ts locker system and patent-pending Biometric Acce...t of Health and Human Services, National Institute...er system will support the NIH,s entire police for... medical research agency. The project is expected...
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