thyrotoxicosis, Mitral Valve Prolapse Syndrome, Prevention of Ventricular Arrhythmia due to Congenital Long QT Syndrome, Prevention of Post Cardio-Thoracic Surgery Atrial Fibrillation, Prevent Bleeding Varicose Vein in the Esophagus, Abnormally Increased Pressure in the Veins of the Liver, A Feeling of Restlessness with Inability to Sit Still, Fast ...
1 The DNA + histone = chromatin definition: The DNA double helix in the cell nucleus is packaged by special proteins termed histones. 2  The formed protein/DNA complex is called chromatin.
There are four types of histones found in chromatin: H2A, H2B, H3, and H4. Two of each histone comprise a protein core, a nucleosome, which DNA wraps around twice.What results is a bead on a string model in which the nucleosomes are the beads and the linker DNA binds them together.Another characteristic of histones are the protein tails that extend outward from the bead..The tails and the degree of their acetylation is an important factor in gene expression.here are four types of histones found in chromatin: H2A, H2B, H3, and H4. Two of each histone comprise a protein core, a nucleosome, which DNA wraps around twice.