What is the recombination percentage between gene y and w in Drosophila?

Question

What is the recombination percentage between gene y and w in Drosophila? (A) 1.3% (B) 98.7% (C) 62.8% (D) 37.2%

Tardigrade Admin · Accepted Answer

The recombination frequency of the test cross progeny is always lower than 50%. Therefore, if any two genes are completely linked, their recombination frequency is almost 0%. The phenomenon of linkage was studied by the scientist T.H. Morgan using the common fruit fly or Drosophila melanogaster.
Solution

Q. What is the recombination percentage between gene y and w in Drosophila?

1.3%

98.7%

62.8%

37.2%

The recombination frequency of the test cross progeny is always lower than 50%. Therefore, if any two genes are completely linked, their recombination frequency is almost 0%. The phenomenon of linkage was studied by the scientist T.H. Morgan using the common fruit fly or Drosophila melanogaster.