cell cycle "phases" Flashcards
1
Q
prophase
A
-fastest phase
-centrioles replicate before prophase
-during prophase centrosomes move to opposite poles to form spindle fibers
-nuclear env breaks down and nucleus disappears
-chromosomes coil up “becomes shorter and thicker”
-sister chromatids are linked together by centromere”
2
Q
metaphase
A
-centrioles act as MTOC
-organize microtubules into spindle fibers
-chromosomes up to equator
2
Q
telophase
A
-nuclear envelope and nucleolus reforms
-chromosomes uncoil to become chromatin
2
Q
anaphase
A
-centromere divide
-spindle fiber shorten
-pulling sister chromatids to opp poles of spindle
3
Q
cytokinesis
A
-cytoplasm constricts cleavage farrow “cell membrane fuses”
-giving 2 genetically identical daughter cells
