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The following three recessive genes are found in corn: bt1, brittle endosperm. g117 glossy leaf and...

The following three recessive genes are found in corn: bt1, brittle endosperm. g117 glossy leaf and rgdl, ragged seedling. A trihybrid of unknown origin is testcrossed producing the following offsprings:

Brittle, glossy, ragged       357

Brittle glossy                     74

Ragged                              66

Glossy                               79

Wildtype                               343

Brittle ragged                         61

Glossy ragged                        11

Brittle                                     9

What are the genotypes and phenotypes of the original parents?

Diagram the linkage relationship in the F1.

Determine the gene order.

Calculate the amount of recombination observed between the genes and diagram the gene map.

Is there any crossover interference? If yes, how much inference is operative?

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