Skip to content
World 5 · Linked Genes · 9 min · PRO

A linked cross, class by class

What the litter actually looks like

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.

  • Genes that travel together
  • Map distance
  • Coupling and repulsion
  • Measuring it: the testcross
  • How many offspring is enough?
PRO includes
  • All 26 labs — every world, every lesson
  • Practice exams and certificates

$8.33/mo, billed yearly ($99.99) · or $39.99 monthly

Unlock GeneticsTry the free world
← Coupling and repulsionMeasuring it: the testcross →

Report a mistake

What is wrong?
0 / 2000 · at least 10 characters
Sent along with your report
  • Page
  • About A linked cross, class by class — Genetics · genetics/g5_4
Plus your browser type. Reports go to our support system; see the privacy notice.