Mitosis Tutorial

1. Which stage does the following occur
Chromatin condenses into chromosomes Prophase
Chromosomes align in center of cell. Metaphase
Longest part of the cell cycle. Anaphase
Nuclear envelope breaks down. Telophase
Cell is cleaved into two new daughter cells. Cytokenisis
Daughter chromosomes arrive at the poles. Interphase

2. The colored chromosomes represent chromatids. There are two of each color because one is an exact duplicate of the other.

How many chromosomes are visible at the beginning of mitosis? 46
How many are in each daughter cell at the end of mitosis? 46
The little green T shaped things on the cell are: Centrioles
What happens to the centrioles during mitosis? They extend fibers to attach to chormosomes

3 . Identify the stages of these cells:
Leftmost One: Metaphase
Center One: Cytokenisis
Right One: Prophase

View the animation and sketch the cell in:
Prophase: The nucleus evaporates and the chormosomes are set free
Metaphase: The chormosomes are set up in the middle of the cell
Telophase: The fibers break and the nuclei reappear around the seperated chormosomes

You will have 36 cells to classify.
# of cells
Interphase: 20
Prophase: 10
Metaphase: 3
Anaphase: 2
Telophase: 1

% of cells
Interphase: 56%
Prophase: 28%
Metaphase: 8%
Anaphase: 6%
Telophase: 3%

 For each organism, identify the stage of mitosis.
White Fish
View 1: Cytokenisis
View 2: Metaphase
View 3: Prophase
View 4: Anaphase

Onion
View 1: Anaphase
View 2: Metaphase
View 3: Prophase
View 4: Cytokenisis
View 5: Telophase