MCQ
A $1: 1$ phenotypic ratio in a test cross indicates that the
  • A
    Alleles are codominant
  • Dominant phenotype of parent was heterozygous
  • C
    Alleles segregated independently
  • D
    Alleles are dominant

Answer

Correct option: B.
Dominant phenotype of parent was heterozygous
b
It's Obvious

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