DNA,Double-Stranded
《英文msh詞典》DNA,Double-Stranded
[同義詞] DNA,Double-Stranded
[主題詞] DNA
[中文釋義] DNA,雙鏈
[英文釋義] A deoxyribonucleotide polymer that is the primary genetic material of all cells. Eukaryotic and prokaryotic organisms normally contain DNA in a double-stranded state,yet several important biological processes transiently involve single-stranded regions. DNA,which consists of a polysugar-phosphate backbone possessing projections of purines (adenine and guanine) and pyrimidines (thymine and cytosine),forms a double helix that is held together by hydrogen bonds between these purines and pyrimidines (adenine to thymine and guanine to cytosine).