Three genes (S, T, and Q) were linked on a chromosome. These genes have the following recombination frequencies:

  S-T: 35%
  S-Q: 39%
  T-Q: 4%

Which of the following shows the correct sequence of these genes in the chromosome?

• A. S-T-Q
• B. S-Q-T
• C. T-Q-S
• D. T-S-Q

Answer: (A)