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Tutorial: Use the image slider below to learn how to identify the different phases of mitosis (cell division) in onion root tip cells. Hover over each image to learn about the specific events that occur during each mitotic phase.
Find these indicators of interphase in cell A in the image below. Figure \(\PageIndex{1}\): Cells in an onion root in interphase and prophase. Cell A has a large, dark nucleolus surrounded by greyish material (chromatin) that is enclosed within the nuclear membrane.
Interphase: Rectangular, oval or even circular in shape; densely stained homogenously granular nucleus; distinct nuclear boundary; nucleolus may also be observed.
To see if each phase of mitosis happens for an equal amount of time in onion root tip cells. Mitosis Lab: Onion Roots The bracketed area of this diagram shows where you are most likely to find dividing cells. Tally Chart: Record the phase for each cell. Key: I= Interphase P= Prophase
In the chart below, sketch IN PENCIL and LABEL a cell in each phase of mitosis with a focus on the distinguishing visible feature of the nucleus and chromosomes. You may want to use your text book for assistance.
12 Ιουν 2016 · This graphic shows an image of what cells in an onion root tip would look like as they are in various stages of mitosis. This worksheet compliments a laboratory activity where students look at onion root tip slides to identify phases of mitosis.
• Prepare your own specimens of onion root in which you can visualize all of the stages of mitosis. • Apply an analytical technique by which the relative length of each stage of mitosis can be estimated.
