Nucleosome and beads-on-stringन्यूक्लियोसोम और धागे पर मोती

NCERT Fig 5.4 · Class 12 Biology · Chapter 5 · interactive diagram

Parts and their functions

• Histone octamer (हिस्टोन अष्टक) — Eight positively charged histone molecules (rich in lysine and arginine).
• DNA wrapped around the core (कोर पर लिपटा डीएनए) — Negatively charged DNA wraps the octamer; a typical nucleosome has 200 bp of DNA.
• H1 histone (H1 हिस्टोन) — Histone at the point where DNA enters and leaves the nucleosome.
• Linker DNA (संयोजी (लिंकर) डीएनए) — DNA joining one nucleosome to the next.
• Beads-on-string (chromatin) (धागे पर मोती (क्रोमैटिन)) — Repeating nucleosomes seen under the electron microscope; the basic structure of chromatin.

Original diagram drawn by Simple Learning Hub, based on NCERT Fig 5.4. Report a mistake