Gene Regulation
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Gene Regulation
Chromatin
Is a complex of DNA and proteins
DNA Packing •histone proteins organize DNA (+charged amino acids ~ phosphates of DNA are charged) Nucleosome •”beads on a string”; basic unit of DNA packing
Heterochromatin •highly condensed interphase DNA (can not be transcribed)
Euchromatin •less compacted interphase DNA (can be transcribed) 13.1
Chromatin
Is a complex of DNA and proteins
DNA Packing •histone proteins organize DNA (+charged amino acids ~ phosphates of DNA are charged) Nucleosome •”beads on a string”; basic unit of DNA packing
Heterochromatin •highly condensed interphase DNA (can not be transcribed)
Euchromatin •less compacted interphase DNA (can be transcribed) 13.1
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