Carefully study the phases of mitosis until you are familiar with the changes in each.Ģ. You can also use the images from the video on youtube: ġ. What is a mitosis flipbook? Check out this example on youtube: When you are finished with a question, please put down you pen, so I can see when everyone is done with that question, before I move on to the next question.MITOSIS FLIP BOOK - worth up to 15 points extra credit. Put your answers to the following questions on your blank sheet of paper. I will give you a few minutes to decide which number corresponds to which phase and then I will call on some of you to see if we are correct. Don’t look at the legs, because they are flopped to the sides. To identify metaphase you will need to look for the middle of the chromosomes and see if they are lined up in the middle of the cell. Look at the slide and see if you can identify each of the four phases of mitosis in an actual cell. Can you give any other examples?ĥ bullets here, then go back to phases slide. For example, in prophase the nucleus breaks down, in telophase the nucleus is re-formed. What is done during prophase is re-done in telophase.
Telophase is the opposite of prophase.
Three bullets here, then go back to phases slide It looks like a V on its side with the bottom of the V going toward the outer part of the cell. You can tell when the chromosomes are moving, because the spindle fibers are hooked to the middle of each chromosome so the tails of the chromosome trail behind. Anaphase is the actual movement of the chromosomes to opposite sides of the cell.There are only two bullets here, then go back to phases slide. The chromosomes are lined up in the middle with each half positioned to go to opposite sides of the cell. Metaphase is one of the easier phases to identify.When spindle fiber forms comes on go back to phases slide. Spindle fibers will eventually act like cables to move the chromosomes around. Animal cells have centrioles which are tube like structures made of the protein tubulin. The centrosomes are different between plant and animal cells. Why do you think the nucleus needs to break down? When we look at onion cells, we can see chromosomes, but not chromatin. You cannot see chromatin with a light microscope. Chromatin is DNA that is uncoiled and not wound around histone proteins.We will go through each cell and see what happens.Secondly, we will learn what is happening in the cell during that time. When going through each phase we will cover two areas.įirst, we will learn how to identify the phase by looking at it in both a diagram and an actual cell. Mitosis has four phases, we will go through each phase.✴Where the chromosomes line up in the middle Pictures in this presentation are courtesy of Wikimedia Commons
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