Cell Division Flashcards
M Phase
the phase of the cell cycle during which mitosis and cytokineses take place
Gap Phase 1
The phase in the cell cycle during which the cell grows new organelles and new proteins are made
G1 checkpoint
The stage in the cell cycle at which the cell checks for all the chemicals needed for replication and for any damage to DNA
Synthesis
stage in the cell cycle during which the cell replicates its DNA, ready to divide by mitosis
Gap Phase 2
cell keeps growing and more proteins needed for cell division are made
G2 checkpoint
Cell checks whether all DNA has been replicated without damage, if so the cell enters mitosis
cytokenisis
the cytoplasmic division of a cell at the end of mitosis or meiosis, bringing about the separation into two daughter cells
Interphase
Gap Phase 1, Synthesis and Gap Phase 1
Prophase
Chromosomes condense getting shorter and fatter. Centrioles start moving to opposite ends of cell and start to form spindle fibres
Metaphase
Chromosomes line up along the middle of the cell and become attached to the spindle by their centromere
Anaphase
Centromeres divide, separating each pair of sister chromatids, pulling one from each pair to either side of the cell.
Telophase
Chromatids reach opposite poles on the spindle. They uncoil and become long and thin again (they become chromasomes again). nuclear envelope reforms around each group of chromosomes.
