Control cell cycle
Mitosis
cell cycle responsible for growing and dividing cells to replace dead ones
having a normal amount of DNA per cell (2n) is called
Diploid
centrioles move to opposite ends
Prophase 1
What is the cell theory
All cells come from cells
what happens in G1
rapid growth begins
what are the three stages of the cell cycle
1) Interphase
2)Mitosis
3) cytokinesis
what is it called when having half the amount of DNA per cell
Haploid
The legs that pull apart the tetrads
spindle fiber
how do cells make more cells
they duplicate into two identical matches
what is cytokinesis
the cytoplasm and the cell membrane pinches off to divide into 2 new cells
Regulating the cell cycle
CDK and Cyclin
Involves two divisions
Meiosis
pinches inward in telophase 1
the cytoplasm
what are germline cells
type of division that result in four cells with half of he amount of chromosomes
what happens in metaphase
nuclear membrane dissolves and the chromosomes line up so the spindle fibers can attach to them
change in DNA
Mutation
what phase comes first
Prophase 1
what do the spindle fibers attach to?
centromere
string like proteins that help split chromosomes during cell division
spindle fibers
what happens in prophase
centrioles move to opposite ends
growth of the cell
Abnormal
what are all the phases
Prophase, metaphase, anaphase, telophase
what happens in telophase 2
new nuclear membrane forms
how many cells do human germline cells have
23 chromosomes
spindle fibers pull chromosomes apart bringing each chromatid towards opposite ends
Anaphase