Mitosis by Una and Austin

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.
Interphase
Nuclear envelope breaks down.
Prometaphase
Cell is cleaved into two new daughter cells.
Anaphase
Daughter chromosomes arrive at the poles.
Telophase

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? 8

How many are in each daughter cell at the end of mitosis? 4

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

What happens to the centrioles during mitosis? They will divide after the DNA replicates.

3 . Identify the stages of these cells:

Telophase

Metaphase

Prophase

Another Mitosis Animation

(I tried to put the boxes in but it didn't really work!)
Prophase- The nucleus is in the center of the cell, and the chromosomes are in the middle of the nucleus.
Metaphase- The centrioles are being pulled to the opposite sides. There are also many spindle fibers connected to the centrioles and the chromosomes are in the middle.
Telophase- The chromosomes are in V shapes and the spindle fibers are connected to the centrioles.

Onion Root Tip - Online Activity

Read the introduction, then click the “next” button.

You will have 36 cells to classify. When you’re finished, record your data in the chart below.

Interphase Prophase Metaphase Anaphase Telophase Total

Number of Cells 20 10 3 2 1 36

Percent of Cells 56% 28% 8% 6% 2% 100%

Mitosis in Whitefish & Onion Roots

For each organism, identify the stage of mitosis.

View 1 View 2 View 3 View 4 View 5

White fish Telophase Metaphase Prophase Telophase NONE

Onion Anaphase Prophase Interphase Interphase Telophase