Chromatin structure refers to the organization of DNA and proteins within the nucleus of eukaryotic cells, which helps regulate gene expression and DNA replication. It exists in two forms: euchromatin, which is loosely packed and transcriptionally active, and heterochromatin, which is tightly packed and transcriptionally inactive. The arrangement of chromatin can be influenced by various factors, including epigenetic modifications, which are crucial in understanding how nutrition can impact gene expression.
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