Copy of Mitosis Cell Identification - Virtual Lab (5/28/2026)

Last updated about 3 hours ago

13 questions

Part 1: Notes - Class Work

Part 2: Identification - Individual Work

Copy of Mitosis Cell Identification - Virtual Lab (5/28/2026)

Last updated about 3 hours ago

13 questions

Part 1: Notes - Class Work

Helpful Terms or Diagrams
Cytokinesis is the process that follows mitosis (or meiosis) in cell division, during which the cytoplasm of a parent cell is divided into two daughter cells; in animal cells, the cell membrane pinches in; in plant cells, a cell plate forms.

Chromatin is a complex of DNA and proteins found in the nuclei of eukaryotic cells; usually not visible; DNA is loosely wrapped around the proteins.

Chromosome is a long, thread-like structure made of DNA and proteins that carries genetic information; essentially, it is condensed chromatin (DNA is tightly wrapped around proteins, taking up less space in the nucleus); usually visible.
 
Centromere - the region of a chromosome where the two sister chromatids are joined together. It plays a crucial role during cell division, as it is the point where spindle fibers attach to pull the sister chromatids apart.

Sister chromatids are two identical copies of a single chromosome that are connected at the centromere. They are formed during DNA replication and are separated during cell division, ensuring that each daughter cell receives an identical set of chromosomes.

P-arm is the shorter arm of a chromosome, located above the centromere. The designation "p" stands for "petit," which means small in French.

Q-arm is the longer arm of a chromosome, located below the centromere. The designation "q" comes from the next letter in the alphabet after "p."

Prophase:
Chromatin is beginning to condense.
The darkened areas in the nucleus provide the clue.

Metaphase:
Stained chromosomes are across the center of the cell.
Spindle fibers stretch from the centrioles at the poles of the cell to the chromosomes.
Motor proteins on centromere of each chromosome are attached to the spindles.

Anaphase:
Sister chromatids have been separated.
Sister chromatids are moving to opposite poles of the cell.

Telophase (late):
Two nuclei have formed.
Chromosomes are beginning to form chromatin (uncondense).
Cytokinesis has completed.

Submit the Mitosis Cell Identification Notes you created in the this section.

Part 2: Identification - Individual Work

What stage of mitosis is this cell in? _______ 

1.5

What stage of mitosis is this cell in? _______ 

3.5

2.5

1.5

What stage of mitosis is the cell in the red circle? _______ 