After completing research into chromatin remodeling, you prepare a presentation on your findings. To be complete, your presentation of the function of chromatin-remodeling complexes will describe how they (Select all that apply) Check All That Apply - regulate transcription by altering the structure of chromatin. - contain enzymes that can modify histones. - contain enzymes that can modify DNA. - slide nucleosomes along DNA to reveal binding sites for proteins. - remodel nucleosomes or completely remove them from DNA. - replace histones with different histones. - regulate passage of mRNA through the nuclear membrane. - target specific mRNAs for destruction or inhibit their translation. - inhibit translation by changing heterochromatin to euchromatin. - are large complexes made of protein and RNA.
Added by Jacob G.
Step 1
This is one of their primary functions. - They do contain enzymes that can modify histones. This is part of how they alter the structure of chromatin. - They do not typically contain enzymes that modify DNA directly. Their role is more about changing the structure Show more…
Show all steps
Close
Your feedback will help us improve your experience
Md.Daniyal Arshad and 78 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
Modifications to chromatin can affect transcriptional activity by changing the accessibility of DNA to the transcription machinery. The given descriptions are examples of various processes that may or may not cause remodeling of chromatin. Match each description to the effect it has on transcriptional activity caused by chromatin remodeling. a. Activates b. Inactivates c. Activates and inactivates d. No effect 1. Histone methylation occurs at different amino acids. 2. A transcription factor binds an enhancer sequence. 3. Histone acetyltransferases attach acetyl groups to the N-terminus of histones. 4. Histone deacetylases remove acetyl groups from the N-terminus of histones.
Adi S.
Which of the following best describes the mechanism by which chromatin-remodeling complexes "loosen" the DNA wrapped around the core histones? Why? They use energy derived from ATP hydrolysis to change the relative position of the DNA and the core histone octamer. They chemically modify the DNA, changing the affinity between the histone octamer and the DNA.
Sri K.
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?
Recommended Textbooks
Biology for AP Courses
Objective Biology for NEET
Introduction to General, Organic and Biochemistry
Transcript
Watch the video solution with this free unlock.
EMAIL
PASSWORD