A community for students.

Here's the question you clicked on:

55 members online
  • 0 replying
  • 0 viewing

anonymous

  • 4 years ago

what is the meaning of kromatin?

  • This Question is Closed
  1. anonymous
    • 4 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    Chromatin is the form of DNA present when a cell is not dividing.

  2. anonymous
    • 4 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    When a cell undergoes division the chromatin coils up to form a chromosome.

  3. anonymous
    • 4 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    Chromatin is a complex of DNA and protein. The proteins include histones, which form into complexes of eight proteins. The DNA is coiled round these histone octamers to form nucleosomes, the basic structure of chromatin. The nucleosomes are then arranged into higher order structures allowing greater packaging of the DNA. Dividing cells have condensed chromatin as sseebeck correctly states but the DNA is still wrapped round the histones. It is interesting that the histones can be chhemically modified by enzymes involved in gene regulation. Certain post-translational modifications of histones allow a more open structure so that RNA polymerases can access the genes and transcribe them. So in short most of the DNA is packed away and can't be transcribed but some expressed genes have a more open structure. The histones nucleosomes can be moved or removed from the DNA in active genes.

  4. anonymous
    • 4 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    thnk u 4 ur explanation..i'm really appreciate that.

  5. Not the answer you are looking for?
    Search for more explanations.

    • Attachments:

Ask your own question

Sign Up
Find more explanations on OpenStudy
Privacy Policy

Your question is ready. Sign up for free to start getting answers.

spraguer (Moderator)
5 → View Detailed Profile

is replying to Can someone tell me what button the professor is hitting...

23

  • Teamwork 19 Teammate
  • Problem Solving 19 Hero
  • You have blocked this person.
  • ✔ You're a fan Checking fan status...

Thanks for being so helpful in mathematics. If you are getting quality help, make sure you spread the word about OpenStudy.

This is the testimonial you wrote.
You haven't written a testimonial for Owlfred.