cell cycle 1 Flashcards
1
Q
what is chromatin composed of
A
basic amino acids and histones H1, H2A, H2B, H3 and H4
2
Q
Whats a nucleosome
A
A histone and dna (structural subunits of chromatin)
3
Q
What is the linker histone
A
H1, binds dna and nucleosome
4
Q
What is an SMC
A
Structural maintenance of chromosomes
5
Q
What are cohesins
A
organize chromatin in interphase by creating small loop
6
Q
What does CTCT do to chromatin
A
Stops further looping by cleaving loop and maintaining structure
6
Q
Condensin I
A
later in mitosis, once nuclear envelope has broken down.
6
Q
What are condensins
A
Important in M phase and enable further folding of chromatin
7
Q
Condensin II
A
functions in early prophase, condenses chromatin
7
Q
A
