Biology 0610 · IGCSE · Monohybrid inheritance

Monohybrid inheritance — practice question

A pure-breeding white rat was crossed with a pure-breeding black rat, and every offspring produced was black. One offspring was then bred with a pure-breeding white rat. What is the most likely percentage of black rats among the offspring?

  • A25
  • B50
  • C75
  • D100

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