Answer;
-double helix, nuclesome, coil, supercoil, chromosome
Explanation;
-The DNA double helix wraps around a Nucleosome. Six nucleosomes form one turn of a Solenoid. Loops of solenoid coils are attached to a non-histone protein Scaffold. The scaffold is coiled, and is in turn coiled as a supercoil that constitutes a single chromatin fiber.
-During metaphase of the cell cycle, the chromatin condenses in an orderly manner to form a microscopically-visible chromosome (comprising two identical chromatids joined at a centromere) with distinctive size and morphology. The chromatin in any single chromosome appears to be a single, continuous DNA helix. Super-coiling of DNA resembles the coiling of an unfastened rope for throwing.
