bn:01365452n
Noun Concept
AR
الأخدود الرئيسية  الأخدود طفيفة  الحلزون المزدوج  الحلزوني المزدوج
EN
The coiling of the two strands of the double-stranded DNA molecule, resembling a spiral staircase in which the base pairs form the steps and the sugar-phosphate backbones form the rails on each side. OmegaWiki
Sources