Mitosis

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

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?
None. The chromosomes are not visible in interphase

-- How many are in each daughter cell at the end of mitosis?
Two.

--The little green T shaped things on the cell are:
They are centrioles.

-- What happens to the centrioles during mitosis?
The centrioles separate and and one is found in each cell.

3 . Identify the stages of these cells:

3a. This cell is in Metaphase.

3b. This cell is in Cytokinesis.

3c. This cell is in Interphase.

Prophase

The cell had each of the centrioles at either of the poles. The chromosomes were lined up and ready to be split.

Metaphase

Telophase