Onion poultices are time tested herbal remedies and treatments for chest congestion and other symptoms of colds and flu. A poultice is simple and easy to make. The onion poultice is a powerful home remedy you can use for your whole family.
Lesson Summary. Chromatin is the special complex of DNA and protein that condenses the genome so that it can be packed into the tiny nucleus. First, DNA is wrapped around histone proteins. Then, a group of histones comes together to form a nucleosome. Finally, the string of nucleosome beads is coiled to condense the DNA even further.
Chromatin is comprised of histones and DNA: a 147 bp of DNA chain wrapped around the 8 core histone forms the basic chromatin unit, the nucleosome. The function of chromatin is to efficiently package DNA into a small volume to fit into the nucleus of a cell and protect the DNA structure and sequence.