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Biology

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Biology

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DNA Structure and Function

How DNA Stores Genetic Information

Description

DNA stores genetic information that is passed from one generation to the next in organisms and most viruses. It is built from two strands of nucleotides that twist together into a double helix. The story of how scientists uncovered this structure developed step by step over nearly a century.

Each...

Transcript

- L'acide désoxyribonucléique, ou ADN,consiste en deux chaînes de polynucléotides. Chacune est faite sous-unités de nucléotides,jusqu'à 4 types différents,qui consistent en un groupe phosphate et une base azotée,adénine, A, cytosine, C, guanine, G, thymine, T,attachées à un sucre désoxyribose. Cet arrangement crée l'ossature de phosphate de su...

Tags

Structure de l ADNDouble h liceBases nucl otidiquesLiaisons hydrog neLiaisons phosphodiesterR gle de ChargaffBrins antiparall lesGrand sillonPetit sillonDiffraction des rayons X

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