Random Chance, Probability

SCIENTIFIC CONCEPTS/PROCESSES

• Clarifies the laws of chance and probability
• Understand the result of single trials of chance and the effect on later trials of same event
• Determine random selection probabilities, simulate gamete production and gene pairing to establish mathematical genetic formulas

Students develop a clear understanding of the principles of probability as they relate to genetics using this unique Lab-Aid. Using red and white plastic extrusions and charts to record the experimental data, students learn that:

• The result of a single trial of chance event does not necessarily effect the results of later trials of the same event
• The chance that two independent events will occur together is the multiplication of their chances of occurring separately

Application of this lab activity extends to Mendelian laws of genetics. Students first determine random selection probabilities. They simulate gamete production for the PTC gene. Next, the students simulate a male-female gene pairing during fertilization to produce specific traits. Finally, they establish mathematical genetic formulas.

All material in this kit, for 30 students, is reusable.

Contents List

• 1 Teachers Guide
• 30 Student Data Charts
• 8 Boxes each containing:


• 400 red and white plastic extrusions