Process By Which Cells 'Hide' Potentially Dangerous DNA Segments Explained

Heterochromatin is the super-condensed portion of the cell's genetic material that hides unneeded genes and potentially dangerous DNA sequences such as transposons from the cell's DNA-activating machinery. Scientists have now identified a critical requirement for heterochromatin assembly. They show that it depends on the strength with which a protein called Chp1 binds to a specific site on a histone protein that is attached to the DNA double helix.

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