Onion root tip mitosis refers to a type of cell division where the parent cell produces two identical daughter cells resulting in two diploid daughter cells.

It is common to see photomicrographs of onion root cells when demonstrating how cell division takes place in plants. Onions have larger chromosomes than most plants and stain dark. The chromosomes are easily observed through a compound light microscope.

The onion tips are easy to prepare for squashing on microscopic slide. The slide preparation can be stained to make them more observable. Why onion root tip for lab experiment? L.S. of root apex showing terminal root cap and sub apical meristem. There are 3 zones (regions) near the tip of the onion root. II. III.

These regions of growth are good for studying the cell cycle because at any given time, you can find cells that are undergoing mitosis. In order to examine cells in the tip of an onion root, a thin slice of the root is placed onto a microscope slide and stained so the chromosomes will be visible.

In this chapter, you can use pictures of onion root tip cells to learn how to identify the different phases of mitosis and better understand what events occur during each phase of mitosis. Microscopy : Use the image slider below to learn how to use a microscope to identify cells dividing by mitosis on an onion root tip slide.

In this lab, you will determine the approximate time it takes for a cell to pass through each of the four stages of mitosis. You may use your textbook and class notes to help you identify the stages of mitosis as seen under the microscope. Set up a …

The student will correctly identify and draw four stages of mitosis using microscope slide images of onion root tips and whitefish blastulae. Procedure: The slides below show longitudinal sections of allium (onion) root tip.

The onion root tip cells’ slide is now prepared and ready to be examined for different stages of mitosis; Observe and study mitosis by placing the slide under the compound microscope. Focus as desired to obtain a distinct and clear image; Observations and Conclusion

This preparation of onion root tip cells is now ready for the study of mitosis. Place the slide under the compound microscope and observe the different stages of mitosis. Various stages of mitosis are prophase, metaphase, anaphase and telophase.

Using a dissection needle, gently mash/squash the root tips to spread out the cells on the glass slide. Cover the glass slide with a coverslip and gently press the coverslip down. Examine the slide under the microscope.