Nucleosome Model Lecture by Ms. Priyanka khan.

This video is about the Nucleosome Model proposed by P. Outdet. In chromosomal organization the DNA is associated with Histone proteins .The nucleosome is the repeating unit that consists of Core particles of octamer of Histones- H2a, H2b, H3 and H4, and 140bp DNA coiled around it. The 60bp DNA is linked from outside to H1 Histone protein through loose bond. This is universally accepted model that shows the lowest level coiling of DNA and it appears as “String On Beads”.