B型DNA螺旋

取自 食品百科全书

中文名称: B型DNA螺旋

英文名称: B-DNA helix

词 性: 名词

英文解释:

A right-handed double helix with the following characteristics: the two strands are antiparallel; the bases are inside the helix and the phosphates and deoxyribose sugars are on the outside; adenine forms hydrogen bonds with thymine, and guanine forms them with cytosine; the bases in each pair are coplanar; there are 10.4 residues per turn, with a pitch of 35 angstrom.