Chromatin

"sperm chromatin-induced ectopic polar body extrusion in mouse eggs after icsi and delayed egg activation.", by Deng M, Li R. pone-0007171-g003: Induction of ectopic polar body extrusion by sperm chromatin and DNA beads.(A) Sperm chromatin induced both cortical actin cap and bipolar spindle formation after injected into an MII egg for 3–4 h (Shown is...

Chromatin describes a blend of DNA and proteins that develop the chromosomes found in the cells of human beings and other higher microorganisms. The total DNA in the cell has to do with 5 to 6 feet long which needs to fit inside the center of a cell in an orderly fashion. DNA particles first twist around the histone proteins forming grains on string structure called nucleosomes. Chromatin fibers can unwind for DNA replication and transcription.

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