Chapter 10 - How Cells Divide Flashcards
Bacteria divide by:
binary fission
Replication of bacteria begin at the:
origin of replication
What forms to divide the cell into 2 cells?
a septum
linear chromosomes
Eukaryotic chromosomes
chromatin
a complex of DNA and proteins
heterochromatin
not expressed
euchromatin
expressed regions
DNA wrapped around a core of 8 histone proteins
nucleosome
What holds a nucleosome together?
histone proteins
Further coiling of a nucleosome creates the 30-nm fiber or_______
solenoid
The particular array of chromosomes of an organism
karyotype
Chromosomes must be ___________ before division.
replicated
Replicated chromosomes are connected to each other at their ________.
kinetochores
Complex of proteins holding replicated chromosomes together
cohesin
2 copies of the chromosome within the replicated chromosome
sister chromatids
What phases of the cell cycle are considered interphase?
G1 (gap phase 1), S (synthesis), G2 (gap phase 2)
What are the 5 main phases of the Eukaryotic Cell Cycle?
G1 S G2 M C
G1 (gap phase 1)
time of cell growth