What is the structure created by nucleosomes inside the nucleus called?

The correct answer is Chromatin.

Key Points

• Chromatin is a complex of DNA and protein found in the nucleus of eukaryotic cells.
• It is composed of repeating units called nucleosomes, which are made up of DNA wrapped around histone proteins.
• Chromatin's primary functions include packing long DNA molecules into more compact, dense structures, and playing a role in gene regulation and DNA replication.
• The structure of chromatin can change, becoming more condensed (heterochromatin) or relaxed (euchromatin), influencing gene expression.
• During cell division, chromatin condenses to form chromosomes, ensuring the accurate distribution of genetic material to daughter cells.

 Additional Information

• Non-Histone Protein
  • Non-histone proteins are a diverse group of proteins that are involved in regulating the structure and function of chromatin.
  • They play various roles in processes such as DNA replication, repair, transcription, and chromosome segregation.
• Octamer
  • An octamer refers to the eight histone proteins (two each of H2A, H2B, H3, and H4) that form the core around which DNA is wrapped in a nucleosome.
  • The histone octamer is essential for the formation of nucleosomes, the fundamental units of chromatin structure.
• Histone
  • Histones are basic proteins that help in the organization and packing of DNA into chromatin.
  • They are subject to various post-translational modifications, such as methylation and acetylation, which can influence chromatin structure and gene expression.