Question

A typical nucleosome contains

• A. 100 bp of DNA helix
• B. 200 bp of DNA helix
• C. 300 bp of DNA helix
• D. 400 bp of DNA helix

Answer 1

Answer: (B)

200 bp of DNA helix

Answer 2

The negatively charged DNA is wrapped around the positively charged histone octomer to form a structure called nucleosome. A typical nucleosome contains $200\, bp$ of DNA helix.