Featured in PASCO’s College Biology Instructor Guide

College Biology Instructor Guide

(PS-3800A)

College Instructor edition with 26 experiments covering introductory and general biology topics.

Mitosis and Meiosis

Lab Summary

Use a microscope and prepared slides to explore the stages of mitosis and meiosis.

Theory

Students investigate the processes of mitosis and meiosis by:

  • Stating and recognizing the stages of cell division.
  • Distinguishing between nuclear division and cytokinesis.
  • Differentiating between plant and animal cytokinesis.
  • Comparing and contrasting mitosis and meiosis.

Method

Students gain experience conducting the following procedures:

  • Observing prepared onion root tip and whitefish blastula slides under a microscope.
  • Calculating the relative amount of time for each stage of mitosis.
  • Simulating the stages of meiosis.
  • Estimating the percentage of crossing over that occurs between the centromere and the gene that controls spore color in Sordaria.
  • Observing the arrangement of ascospores in the asci of an organism resulting from a cross between a wild-type and a mutant (for tan spore coat color) Sordaria.

Sensors / Equipment Used:

kena Digital Microscope

(SE-7236)

USB connected and powered for experiments in the classroom or the field.

Materials Used:

Chromosome simulation kit or colored beads and magnets
Onion root tip prepared slide 
Sordaria ascospore (cross-over) prepared slide
Whitefish blastula prepared slide

The Associated Bundle:

College Biology Bundle

(PS-2926B)

A complete probeware bundle designed for PASCO's College Biology curriculum

Interface Required

This experiment may require software and an interface for data collection.