Stages of Mitosis Flashcards
list the stages of mitosis in order
Interphase( After S phase Prophase Prometaphase Metaphase Anaphase Telophase
what are the 2 major periods of the cell cycle
interphase- cell grows & carries on its usual activities cell division(mitotic phase) -cell divides in two
what are the cells that don’t reproduce
mature skeletal, cardiac muscle, most nerve cells
Interphase- After Phase
Nuclear material is uncondensed chromatin state
interphase consists of subphases which include the process of DNA replication
what is Mitosis
division of the nucleus, where DNA is distributed by new daughter cells
Mitosis-Prophase2
Early prophase: Chromatin condenses,visible chromosomes
each chromosome and its duplicate by a centromere
Centrioles move to opposite sides and form spindle fibers, which controls cell division
Prometaphase
Aka Late Prophase
Nuclear envelope breaks up, nucleolus disappears
What’s the quickest phase of Mitosis?
Anaphase
Metaphase
Centromeres of chromosomes are aligned @ cell’s equator(middle)
Imaginary plane midway between poles is called metaphase plate
what is the most observes phase of mitosis
Metaphase
Anaphase
shortest of all phases
centromeres split simultaneously, each sister chromatid now becomes a seperate chromosome
chromosomes pulled toward perspective poles by motor proteins of kinetochores
what are kinetochores
proteins that pull the cell apart
Telephase
begins when chromosome movement stops
each set of chromosomes (@ opposite ends) coils and from chromatin
new nuclear membranes form around each chromatin mass
nucleoli reappear
spindle appears
during what phase do the nucleoli reappear
telophase
during what phase do the nucleoli disappear, what structure is now more visible?
Prophase
nucleoli disappears
chromosomes are more visible
