[Campbell Biology P.352] Based on the experimental data provided 965 wild type, 944 black-ve... | Practice Question

Based on the experimental data provided 965 wild type, 944 black-vestigial, 206 gray-vestigial, 185 black-normal , how is the recombination frequency calculated?

  • A: (965 + 944) / 2300 * 100%
  • B: (206 + 185) / 2300 * 100%
  • C: (206 + 185) / (965 + 944) * 100%
  • D: (965 + 206) / 2300 * 100%

Explanation

Recombination frequency is the percentage of recombinant offspring in the total pool. The recombinant offspring are those with nonparental phenotypes gray-vestigial and black-normal . The total number of offspring is 965 + 944 + 206 + 185 = 2300. The number of recombinants is 206 + 185 = 391. The frequency is 391 / 2300 100%, which is approximately 17%.