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.
In biology, histones are highly alkaline proteins found in eukaryotic cell nuclei that package and order the DNA into structural units called nucleosomes. They are the chief protein components of chromatin, acting as spools around which DNA winds, and playing a role in gene regulation. Without histones, the unwound DNA in chromosomes would be very long. For example, each human diploid cell has about 1.8 meters of DNA; wound on the histones, the dipliod cell has about 90 micrometers of chromatin.