Genetics · Module 2 · Extensions of Mendel and gene interaction

Extending Mendel Walkthrough

See dominance as protein dose, follow multiple alleles and lethal alleles, then build two-gene pathways that bend 9 : 3 : 3 : 1 into 9 : 7, 9 : 3 : 4, 12 : 3 : 1, 13 : 3, 15 : 1 and 9 : 6 : 1. Read F2 counts, run complementation tests and watch the environment change a phenotype. Go at your own pace. Nothing here is graded.

Speed

Think of it like this

Quick check

Wrong answers are fine here. Read why, then try again.

Dr. Akash Garg · Genetics Study Tools · Drawings are simplified and not to scale. For learning only, not medical advice or genetic counseling. CC BY-NC-SA 4.0
Use the left and right arrow keys to move between steps. Animations run faster than real life. Practice next in the Extending Mendel Lab.