Mitosis Flashcards
All cells come from pre-existing cells
Rudolf Virchow
Responsible for repairing the damage area in cells
Mitosis
Cell division of genetic material in the
nucleus
Mitosis
For growth and repair
Mitosis
Occurs in somatic/body cells
Mitosis
Mitosis produces _____ cell
diploid
Mitosis goal is to make ______ cells
identical
When cell are not dividing, their DNA exists as?
Chromatin
Holds the SC together & helps in the condensation of chromosomes
Cohesin
How do you count the chromosomes?
By the presence of their functional centromere
What happens in Late G2 of Interphase?
Duplication of centrosome
Uncondensed chromosome
PROPHASE ganaps
Chromatin is condensed into a chromosome
Nucleoli disappear
Nuclear envelope breaks down
Duplicated chromosome appears as identical sister chromatids joined at their centromeres all along their arms by cohesins
Mitotic spindle begins to form
PROMETAPHASE ganaps
Microtubules from the spindle interact with the condensed chromosomes
Kinetochore is formed at the centromere
TRUE OR FALSE?
What lies in the center during metaphase? Is it chromosomes?
FALSE. Their centromeres lie at the center
METAPHASE ganaps
Centromeres lie at the center
SC are arranged at the metaphase plate
Kinetochore microtubules from opposite poles are now attached to the SC
Centrosomes are now at the opposite pole of the cell
ANAPHASE ganaps
Each chromatid becomes independent chromosomes
Two new daughter chromosomes begin moving toward opposite ends of the cell as their kinetochore microtubules shorten
Cell elongates
Two ends of the cell have identical chromosome
TELOPHASE & CYTOKINESIS ganaps
Daughter nuclei begin to form at the two poles
Nuclear envelope arises
Nucleoli reappears
Chromosome is less condensed
Does Cytokinesis overlaps with telophase? YES OR NO?
YES
CYTOKINESIS IN ANIMAL CELL
Cleavage furrow
CYTOKINESIS IN PLANT CELL
Cell Plate
Shortens a contractile ring
Cleavage furrow
Fusion of vacuoles and vesicles
Cell plate
