Structure of Chromatin. Toyosi Coker, Maddie Irvin, Abby Keller, Ryan Kilgore.
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Toyosi Coker, Maddie Irvin, Abby Keller, Ryan Kilgore
A bead like structure which is a segment of DNA that is wrapped around a histone protein. A good comparison is the thread which is wrapped around a spool. With the thread being the DNA and the spool the histone proteins.
“Beads on a string”- Refers to the looks of the string of DNA after nucleosomes have been formed. The nucleosomes resemble the beads on the DNA string.
Positive and Negative charges- helps form the nucleosome. Histone proteins have a positive charge due to it’s amino acids. DNA has a negative charge due to its phosphate backbone.
Amino Acid- The amino acid is altered in methylation and acetylation.
Protein- structural proteins attach with DNA to form the structure of the chromatin.
DNA- segments form genes. Heterochromatin effects gene expression.
Chromosome- the very condensed form of chromatin.