TLS Online TPP Program

#Question id: 4731


A pure-breeding strain of squash that produced disk-shaped fruits was crossed with a pure breeding strain having long fruits. The F1 had disk fruits, but the F2 showed a new phenotype, sphere, and was composed of the following proportions

Disk  384            

Sphere 96

 Long  32

What is reason for F2 phenotype?

#Section 3: Genetics, Cellular and Molecular Biology
  1. Duplicate gene interaction       

  2. Dominant epistatis

  3. Collaborative gene interaction     

  4. Supplementary gene interaction