A heterozygous plant is crossed with a homozygous recessive plant. The expected ratio is

  1. all dominant
  2. 1 : 2 : 1
  3. 3 : 1
  4. 1 : 1
Answer

D) 1 : 1

Tt × tt gives half Tt, half tt. O Level Biology · Topic 17 Inheritance · 17.3 Inheritance

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