Chromosomes
During which phase of mitosis do sister chromatids separate and become individual daughter chromosomes?
Anaphase
During Prophase of mitosis, what is the primary movement of the centrioles in an animal cell?
They move toward opposite poles of the cell to begin organizing the mitotic spindle.
What is the primary function of the centromere during mitosis?
To hold sister chromatids together and serve as an attachment point for spindle fibers
What is the main function of spindle fibers during mitosis?
To move and align chromosomes, then pull sister chromatids apart.
Which statement correctly describes what happens to the cell nucleus during the stages of mitosis?
The nuclear envelope breaks down during Prophase and reforms around two new sets of chromosomes during Telophase.
In Anaphase, what specifically happens to the genetic material?
Sister chromatids are pulled apart
When do centrioles actually replicate?
S phase of Interphase
During which phase of mitosis do the centromeres officially split?
Anaphase (This is the defining moment when sister chromatids become individual daughter chromosomes)
In which phase does the mitotic spindle finally break down and disappear?
Telophase
What is the primary reason the nucleolus disappears during mitosis?
Ribosomal RNA synthesis stops
What is the end result of a single round of mitosis and cytokinesis?
Two genetically identical diploid daughter cells.
In animal cells, how does the cell membrane contribute to the completion of cell division?
It pinches inward at the cell's equator, forming a cleavage furrow to split the cytoplasm.
If a parent cell has 46 chromosomes, how many chromosomes will each daughter cell have after mitosis?
46 (The chromosome number is maintained)
How does the cell membrane's behavior during plant cell cytokinesis differ from that of animal cells?
A cell plate forms from the inside out, eventually fusing with the existing membrane