A wild-type trihybrid soybean plant is crossed to a pure-breeding soybean plant with the recessive phenotypes pale leaf (l), oval seed (r), and short height (t). The results of the three-point test cross are shown below. Traits not listed are wild type.Phenotype NumberPale 648Pale, oval 64Pale, short 10Pale, oval, short 102Oval 6Oval, short 618Short 84Wild type 981630Calculate the interference value for these data.

A wild-type trihybrid soybean plant is crossed to a pure-breeding soybean plant with the recessive phenotypes pale leaf (l), oval seed (r), and short height (t). The results of the three-point test cross are shown below. Traits not listed are wild type.

Phenotype                  Number
Pale                               648
Pale, oval                        64
Pale, short                      10
Pale, oval, short            102
Oval                                  6
Oval, short                    618
Short                               84
Wild type                         98
                                    1630

Calculate the recombination frequencies between the adjacent genes.

A wild-type trihybrid soybean plant is crossed to a pure-breeding soybean plant with the recessive phenotypes pale leaf (l), oval seed (r), and short height (t). The results of the three-point test cross are shown below. Traits not listed are wild type.

Phenotype                  Number
Pale                               648
Pale, oval                        64
Pale, short                      10
Pale, oval, short            102
Oval                                  6
Oval, short                    618
Short                               84
Wild type                         98
                                    1630

What are the alleles on each homologous chromosome of the parental wild-type trihybrid soybean plant? Place the alleles in their correct gene order. Use L, R, and T to represent dominant alleles and l, r, and t for recessive alleles.

In rabbits, chocolate-colored fur (w⁺) is dominant to white fur (w), straight fur (c⁺) is dominant to curly fur (c), and long ear (s⁺) is dominant to short ear (s). The cross of a trihybrid rabbit with straight, chocolate-colored fur and long ears to a rabbit that has white, curly fur and short ears produces the following results:

  Phenotype                                Number 
White, short, straight                      13
Chocolate, long, straight               165
Chocolate, long, curly                    13
White, long, straight                       82
Chocolate, short, straight              436
Chocolate, short, curly                   79
White, short, curly                         162
White, long, curly                          450
                                                    1400

Determine the interference value for this cross.

In rabbits, chocolate-colored fur (w⁺) is dominant to white fur (w), straight fur (c⁺) is dominant to curly fur (c), and long ear (s⁺) is dominant to short ear (s). The cross of a trihybrid rabbit with straight, chocolate-colored fur and long ears to a rabbit that has white, curly fur and short ears produces the following results:

  Phenotype                                Number 
White, short, straight                      13
Chocolate, long, straight               165
Chocolate, long, curly                    13
White, long, straight                       82
Chocolate, short, straight              436
Chocolate, short, curly                   79
White, short, curly                         162
White, long, curly                          450
                                                    1400

Calculate the recombination frequencies between each of the adjacent pairs of genes.