Deoxyribonucleic acid (dna), Biology

Deoxyribonucleic acid (DNA) is the nucleic acid composed of two polynucleotide strands wound around the central axis to form a double helix; the repository of genetic information. Nucleic acid which functions as the physical carrier of the inheritance for 99% of all the species. The molecule is double-stranded and is composed of two strands in an antiparallel and complementary arrangement. Its basic unit, the nucleotide, comprises of a molecule of deoxyribose a phosphate group, sugar, and one of the four nitrogenous bases.

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Posted Date: 8/1/2012 5:57:02 AM | Location : United States







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