Looking for patterns, trends and discrepancies—Mendel used observations of the natural world to find and explain patterns and trends. Since then, scientists have looked for discrepancies and asked questions based on further observations to show exceptions to the rules. For example, Morgan discovered non-Mendelian ratios in his experiments with Drosophila. (3.1)
Understandings, applications and skills
BioKnowledgy Presentation on 10.2 Inheritance (AHL) from Chris Paine
Useful Links
Click here for a worked example of Dihybrid Crosses.
Click here to watch a narrated animation.
Click here for an online breeding experiment with drosophila.
Click here for a more complex lab involving chi2 practice.