Fitting right into the equation is Erin Hills Golf Course in Hartford, Wisconsin, the site of the 2017 U.S. Open. Erin Hills has never held the U.S. Open, although it has held the U.S. Amateurs, the U.S. Women's Amateur Public Links and other tournaments as well.
DNA has two main biological functions (aside from being a very elegant looking macromolecule). Primarily, it serves to store/determine the biological characteristics of any living thing according to a very specific arrangement of molecular connections, as will be defined in a later section of this site.
The primary functions of chromatin are 1) to package DNA into a smaller volume to fit in the cell, 2) to reinforce the DNA macromolecule to allow mitosis, 3) to prevent DNA damage, and 4) to control gene expression and DNA replication. 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. 3  The basic structural unit of chromatin is the nucleosome.