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World 3 · Doubling on a Plate · 14 min · PRO

The doubling rule: N = N₀ × 2^(t/td)

Why one cell can become a billion

PRO · Microbe Zoo

World 3: Doubling on a Plate is part of PRO

The first world of Microbe Zoo is free. PRO opens the other 27 lessons in 6 worlds — simulations, quizzes and all.

  • Binary fission: one becomes two
  • The four phases of a growth curve
  • Counting colonies: serial dilution
  • Warm food, cold food
  • A virus is not a cell
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