Biology 0610 · IGCSE · Monohybrid inheritance

Monohybrid inheritance — practice question

In a plant species, the allele for red flower colour, R, is dominant over the allele for yellow flower colour, r. What flower colour would the offspring show from a cross between a parent with genotype Rr and a parent with genotype rr?

  • A100% red
  • B75% red and 25% yellow
  • C50% red and 50% yellow
  • D25% red and 75% yellow

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