Genetics · Module 4 · Linkage and genetic mapping

Linkage and Mapping Walkthrough

Watch four chromatids trade pieces, eight testcross classes sort themselves by size, double crossovers give away the middle gene, asci line up their spores, and LOD scores climb toward 3. 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. Families, data sets and counts are made up for teaching. Practice next in the Linkage and Mapping Lab.