Mitosis Flashcards
What does mitosis result in?
Two identical daughter cells
Nucleus
Membrane bound organelle only in eukaryotes, site of transcription
Nuclear pore complex
Controls what goes in and out of the nucleus
Chromatin
DNA that is packaged with proteins
G1 cell cycle phase
Interphase, the gap between duplication, producing products specific to their role in the body
G0 cell cycle phase
Where cells who are not actively dividing exist
S cell cycle phase
Chromosome duplication phase, DNA synthesis
G2 cell cycle phase
Cell is busy making proteins for the M phase, interphase again
M phase in cell cycle
Mitosis stage of cell cycle
Centromere
The point that connects sister chromatids to each other
Prophase
- Chromosomes condense, centrosomes migrate to each pole and microtubules extend
- Nuclear membrane breaks down
- Kinetochores of sister chromatids attach to microtubules
Metaphase
- The chromosomes align on the metaphase plate (middle) with sister chromatids facing opposite poles
Anaphase
- Sister chromatids separate at centromere and move to opposite poles (disjunction)
Telophase
Nuclear membrane reforms, spindle fibers disappear, chromosomes uncoil and cytoplasm begins to divide
Cytokinesis
Cytoplasm divides, and spits the parent cells into two daughter cells
Cleavage furrow
Results because of contractile ring, the squeezed area between the new two cells
