Question: A second trihybrid test cross was performed involving female octopus that were heterozygous for all three genes and male octopus that were homozygous recessive.The results of this second cross are shown in the table below. Offer a plausible explanation for the differences observed between the results of trihybrid test cross #1 vs. the results of this second test cross. Phenotype Number observed Long, weak, brown 495 Short, strong, red 501
In a newly discovered species of Giant Pacific Octopus, long tentacles (L) are dominant to short tentacles (l), strong suction cups (S) are dominant to weak suction cups (s), and brown body color (B) is dominant to red body color (b). A trihybrid test cross was performed between male octopuses that were heterozygous for all three genes, and female octopuses that were homozygous recessive. (You may assume that the dominant alleles exhibit complete dominance.) The results of this cross are shown in the table attached
Question:
A second trihybrid test cross was performed involving female octopus that were heterozygous for all three genes and male octopus that were homozygous recessive.The results of this second cross are shown in the table below. Offer a plausible explanation for the differences observed between the results of trihybrid test cross #1 vs. the results of this second test cross.
|
Number observed |
Long, weak, brown |
495 |
Short, strong, red |
501 |


Step by step
Solved in 2 steps with 2 images









