Exercise 11.1 - Mitosis
- Prepared slide of Onion root tip
- Prepared slide of whitefish blastula
- Obtain a slide of an onion root tip and examine it for the
basic stages of mitosis. Refer to Figure 11.3 for comparison.
- Draw and label each of the stages.
- Obtain a slide of a whitefish blastula for observation of
the stages of mitosis in an animal cell. Since early
embryogenesis involves rapid cellular division, the whitefish
blastula has long served as a model of mitotic division in
animals. It also has the advantage of demonstrating clear spindle
formation in the cytoplasm.
- Using Figure 11.3A as a guide, draw and label all stages of
mitosis, including spindle formation, in the whitefish blastula.
- Compare the division of the cell (cytokinesis) from the
onion root tip to that of the whitefish blastomeres.
to Table of Contents
Cell Biology Laboratory Manual
Dr. William H. Heidcamp, Biology Department, Gustavus Adolphus College,
St. Peter, MN 56082 -- firstname.lastname@example.org