Term
|
Definition
Interphase
normal metabolic activities and growth
3 periods
G1--centrioles begin replicating
S--DNA is replicated
G2--preparations for mitosis are completed, centrioles finish replicating |
|
|
Term
|
Definition
early prophase
Chromatin condenses to form chromosomes
Each duplicated chromosome appears as two identical threads call sister chromatids |
|
|
Term
|
Definition
late prophase
nuclear envelope fragments
kinetochore microtubules pull on chromosomes drawing them to the center |
|
|
Term
|
Definition
metaphase
chromosomes cluster at the middle of the cell, forming the metaphase plate
centromeres are precisely aligned at the center |
|
|
Term
|
Definition
anaphase
centromeres split, each chromatid becomes a chromosome
kinetochore microtubules pull each chromosome towards a pole of the cell |
|
|
Term
|
Definition
telophase
identical sets of chromosomes at opposite ends of poles uncoil and resume threadlike material
nuclear envelope forms around each new mass of chromatin |
|
|
Term
|
Definition
completes the division of the cell
contractile ring of actin microfilaments forms the cleavage furrow and pinches the cells apart |
|
|
