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Which of the following is a monohybrid cross?

Correct answer: B. TT X tt

  • A. TTYy X Ttyy
  • B. TT X tt
  • C. Both Options A and B are correct
  • D. None of these options are correct

Explanation

The cross between two monohybrid traits (TT and tt) is called a Monohybrid Cross." Monohybrid cross is responsible for the inheritance of one gene. OPTION A: TTYy x Ttyy is responsible for two traits, thus called a dihybrid cross. OPTION B: The cross between two monohybrid traits (TT and tt) is called a Monohybrid Cross. OPTION C: Only option B is correct so both A and B cannot be correct. OPTION D: This option is not correct as option D is correct.

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About Inheritance

Mendel's laws explain segregation, independent assortment and the prediction of genetic ratios using alleles, genotypes and phenotypes. The chapter also covers linked genes, recombination and crossing over during meiosis, then applies pedigree reasoning to X-linked recessive traits, which show different inheritance patterns in males and females.

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