#Question id: 2730
#Unit 2. Cellular Organization
The histone tails are required for chromatin to condense from the beads-on- a-string conformation into the 30-nm fiber. Recent experiments indicate that the N-terminal tails of histone H4, particularly_____________, are critical for forming the 30-nm fiber.
#Question id: 2731
#Unit 2. Cellular Organization
Which of the following is not a characteristic of the nuclear scaffold?
#Question id: 2732
#Unit 2. Cellular Organization
DNA is an important therapeutic target for the intercalating agent class of drugs. These drugs work by:
#Question id: 2733
#Unit 2. Cellular Organization
The third strand of triple helix is paired in which scheme?
#Question id: 2734
#Unit 2. Cellular Organization
Although nucleotides bearing the major purines and pyrimidines are most common, both DNA and RNA also contain some minor bases. In DNA the most common of these are _______________ forms of the major bases; in some viral DNAs, certain bases may be hydroxymethylated or glucosylated.
#Question id: 2735
#Unit 2. Cellular Organization
Match the following histone tail modifications with the respective amino acids the modify.
|
COLUMN I |
COLUMN II |
|
I.
Sumoylation |
a) Lysine and
Arginine |
|
II.
Deimination |
b) Lysine |
|
III.
ADP ribosylation |
c) Arginine →
Citrulline |
|
IV.
Methylation |
d) Glutamate |