DNA inside the nucleus is organized into a structure called chromatin, which consists of DNA wrapped around proteins called histones. This forms nucleosomes, resembling "beads on a string." Chromatin can be further condensed into higher-order structures, creating chromosomes during cell division. There are two types of chromatin: euchromatin, which is loosely packed and active in gene expression, and heterochromatin, which is tightly packed and generally inactive. This organization allows for ef
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