Quick Biochemistry Basics | Histone Acetylation @quickbiochemistrybasics | Uploaded 2 years ago | Updated 3 hours ago
Histone acetylation is a phenomenon in which acetate groups are transferred to histones. This addition neutralizes the histones and affects binding with the DNA. The cells have enzymes that regulates acetylation and deacetylation of histones. Enzyme histone acetyl transferase is involved in histone acetylation while the enzyme histone deacetylase is involved in histone deacetylation. The acetylation and deacetylation of histones play a key role in regulation of transcription.

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$Resolution of a Microscope This video is about, how diffraction limits ability of light microscope to resolve small objects. Resolution is the ability of an optical instrument/microscope to distinguish between two closely spaced objects (governed by Rayleigh criterion) and ability of optical instrument/microscope to see tiny object clearly. The resolution of microscope is mathematically given by Abbe diffraction limit, that depends on the wavelength of light used and Numerical Aperture (NA). The resolution of optical microscope depends on the diffraction, while resolution of super resolution microscope is independent of diffraction limitation.$

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Histone Acetylation @quickbiochemistrybasics