Biology 0610 · IGCSE · Monohybrid inheritance

Monohybrid inheritance — practice question

One individual is homozygous dominant for a characteristic and has genotype TT. A second individual is heterozygous for this characteristic. In a genetic cross between these two individuals, what is the correct percentage of genotypes in the offspring?

  • A100% Tt
  • B50% TT, 50% tt
  • C50% TT, 50% Tt
  • D25% TT, 50% Tt, 25% tt

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