World 5 · Linked Genes · 7 min · PROGenes that travel together
Why 9:3:3:1 is only sometimes true
PRO · Genetics
World 5: Linked Genes is part of PRO
The first world of Genetics is free. PRO opens the other 44 lessons in 7 worlds — simulations, quizzes and all.
PRO includes
- All 26 labs — every world, every lesson
- Practice exams and certificates
$8.33/mo, billed yearly ($99.99) · or $39.99 monthly