bio.. .o

what are the four phases of mitosis
- prophase
- metaphase
- anaphase
- telephase
what is the longest stage of mitosis

prophase
describe what happens to the chromatin, nuclear membrane & nucleolous, and the spindle during prophase
- chromatin: condenses into chromosomes
- nuclear membrane & nucleolous: disappear
- spindle: forms
what creates the spindle?

protein fibers form between the two centrioles
what kind of structure is a spindle

fanlike
what will the spindle do during mitosis

move the chromosomes
what happens during metaphase

the chromosomes attach to the spindle and move to the equator of the cell
what happens during anaphase

the centromeres divide and the sister chromatids move to the opposite poles
what happens during telephase

new nuclear membranes form around each set of chromosomes, the nucleolus reappears and the spindle breaks down
describe animal cytokinesis

the cell membrane is drawn inward until the cytoplasm is divided into 2 nearly equal parts
describe plant cytokinesis

a cell plate forms between the 2 nuclei and divides the cell into 2 parts. the cell plate becomes the new cell wall

Author

emilyyx14

69638

Card Set

bio.. .o

Description

cell

Updated

2011-02-28T22:13:31Z