Question
The DNA in a cell associates with proteins to form chromatin. What is a nucleosome? What role do histones play in nucleosomes? How are nucleosomes arranged in condensed 30 -nm fibers?
Step 1
Histones are positively charged proteins that play a crucial role in nucleosomes by providing a scaffold for the negatively charged DNA to wrap around, thus facilitating the compaction and organization of the DNA within the cell nucleus. Show more…
Show all steps
Your feedback will help us improve your experience
Sam Limsuwannarot and 89 other Biology educators are ready to help you.
Ask a new question
Labs
Want to see this concept in action?
Explore this concept interactively to see how it behaves as you change inputs.
Key Concepts
Recommended Videos
What role do histones play in DNA replication?
What is chromatin? a. the histone-containing protein core of the nucleosome b. the 30 -nm fiber c. the complex of DNA and proteins found in the nucleus d. the histone and non-histone proteins in eukaryotic nuclei
Many proteins other than histones are found associated with chromosomes. What roles do these nonhistone proteins play? Why do chromosomes have more different types of nonhistone than histone proteins?
Transcript
Watch the video solution with this free unlock.
EMAIL
PASSWORD