Cell Cycle, Mitosis, Meiosis Flashcards
Nuclear Division aka
Karyokinesis
Cytoplasmic Divison aka
Cytokinesis
Cell division of mitotic cells
Mitosis
Cell division in developing sperm cell in the ovary and the testis
Meiosis
2 phases of the cell cycle
Interphase
Mitosis
Particular phase of the cell cycle wherein the cell would be able to discern if it’s needed to proceed with cell division or remain into its specialization
G0 phase
3 phases of Interphase
G1
S
G2
Mitotic division results in
2 daughter cells
4 stages of Mitosis
Prophase
Metaphase
Anaphase
Telophase
Mitosis stage:
Chromosomes continue to condense becoming shorter and thicker
Prophase
Prophase:
Would allow movement towards the end for adding subunits
Kinesis
Prophase:
Causes a movement toward the less active end for removing subunit
Dynein
Mitosis stage:
Alignment of chromosomes in the same plane in the middle of the cell to form the equatorial plate
Metaphase
Metaphase:
holds the two sister chromatids together
Kinetochore
Metaphase:
hold the centromeres in place in their respective polar regions in the cell maintaining the linear arrangement of the chromosomes
Aster Microtubules
Metaphase:
help hold the chromosomes in place and the other organelle
Polar Microtubules
Mitosis Stage:
There is separation of the single kinetochore of each pair of chromatids into 2
Anaphase
Mitosis Stage:
Chromosomes are clustered at the spindle poles and segments of nuclear envelope are formed around them
Telophase
Cells based on their proliferative activity:
Cells that no longer divide or rarely divide
Static Cell population
Cells based on their proliferative activity:
Little mitotic activity but are able to divide during repair
Stable Cell population
Cells based on their proliferative activity:
Regular mitotic activity
Continuously Dividing cells
What are the 3 checkpoints of the cell cycle
G1/S
G2/M
M
checkpoints of the cell cycle:
Proper cell size and DNA damage checking
G1/S checkpoint
checkpoints of the cell cycle:
DNA replication completion and damage checking
G2/M checkpoint