Which of the following is the core of histones that DNA wraps around?
A) 2H2A
B) 2H2B
C) 2H3
D) 2H4
E) these all makeup of the core histones
E) All of these make up the histone core.
Histone is an octamer ( consists of 8 units ) which is composed of two copies of each of H2A , H2B, H3 and H4. The nucleosome is wrapped into this histone octamer and an additional protein called histone 1 is used to clip the end so that it doesnot unwind.
Which of the following is the core of histones that DNA wraps around? A) 2H2A B)...
5. DNA wraps around a octamer resulting in a structure called a a. bead / chromosome b. supercoil / operon C. glycoprotein / nucleosome d. histone / nucleosome e. histone / supercoil
which if the following best describes the mechanism by which chromatin remodeling complexes loosen the dna wrapped around the core histones A) they chemical lie modify the DNa changing the affinity between the histones octaves and the DNA B) they use energy derived from ATP hydrolysis to change the relative position of the Dan and the core histone octamer C) they remove histone H1 from the linker DNA adjacent to the core histone octamer
Which does not describe eukaryotic histones in a nucleosome structure? A. A core histone plus a linker histone octamer B. A core histone octamer plus a linker histone C. A core histone octamer plus 2 linker histones D. A core histone nonamer E. A core histone heptamer plus a linker histone
All of the following can be found in chromatin except Select one: a. DNA b. histones c. RNA d. transcription factors Hint: it's not d.
Which of the following is not true for histones? A. They are associated with the nucleosome. B. H1, H2, and H4 form the nucleosome core. C. They are found in the nucleus. D. H1 functions as a monomer.
1. DNA is coiled around what type of proteins to form nucleosomes A. Polymerases DNA replication of the lagging strand is discontinuous B. Transcription factors DNA replication of the lagging strand is continuous C. Helicases D. Histones E. DICER 2. Which of the following statements is true? A. DNA replication of the leading strand is discontinuous B. DNA replication of the lagging strand is discontinuous C. DNA replication of the leading strand is dispersive D. DNA replication of the lagging...
None of the above QUESTION 50 Which of the following participates directly in meiosis DNA Histones Microtubules Actin microfilaments All of them MacBook Air
-DNA wraps itself #turns per nucleosome which is about #base pairs. -what is the evidence that eukaryotic DNA is packaged with nuclosomes? list all 4
3. Persistence length of DNA and energy cost of bending DNA around histone proteins (a) DNA is stiff because it is a double helix. At room temperature in dilute solution the persistence length of DNA is found to be p-50 nm. Using this persistence length, find the bending spring constant of DNA (b) In chromosomes, DNA molecules are wrapped tightly around histones. Consider wrapping a DNA molecule around a full circle, estimate the energy cost of bending DNA around the...
QUESTION 1 A nucleosome consists of A. a cluster of histone proteins that are wrapped around the DNA double helix. B. two peptides each of histones H2A, H2B, H3 and H4, wrapped by the DNA double helix. the DNA polymerase complex and the Okazaki fragments of approximately 200 bases in C. length. D. clusters of ribosomal large subunits and small subunits bound to the DNA double helix. E. one of each of the 5 types (H1 - H4) of histone...