ACTIVITY No.3
MITOSIS
Directions: Label the following stages of mitosis and give at least one (1) significant
event each stage.
1. Metaphase
significant event: The chromosomes line up smartly cease-to-cease alongside the center
(equator) of the cell.
2. Telophase
significant event: The single cell then pinches in the middle, separating into two
daughter cells, each with a nucleus and a full complement of chromosomes.
Cytokinesis is the name for this process.
3. Prophase
significant event : Under a microscope, the chromosomes condense into X-shaped
structures that are plainly visible.
4. Anaphase
significant event:
The mitotic spindle then pulls the sister chromatids apart, pulling one chromatid to one
pole and the other chromatid to the opposite pole.
Explanation:
The nuclear envelope (the membrane that surrounds the nucleus) collapses and
chromatin condenses into chromosomes during the prophase, which is the first and
longest stage of mitosis. During metaphase, spindle fibers adhere entirely to the
centromeres of each pair of sister chromatids. When the sister chromatids align with
the equator or the cell's center during anaphase, the cell enters anaphase. Spindle
threads separate sibling chromatids and visit individual daughter cells as the cell
divides. At the centromere, some spindles have lost contact with kinetochore proteins
https://www.yourgenome.org/facts/what-is-mitosis
https://www.montgomerycollege.edu/_documents/academics/support/learningcenters/ackerman-learning-center-rockville/mitosis.pdf