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A corn breeder has a plant that is dominant for 4 traits that are known to...

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Biology

A corn breeder has a plant that is dominant for 4 traits thatare known to assort independently (i.e. it’s phenotype isA_ B_ C_ D_). This plant has desirable properties, so the breederwishes to determine its exact genotype. The breeder performs a testcross and obtains the following results in the F1 generation.

PhenotypeObserved #PhenotypeObserved #
A_ B_ C_ D_61A_ bb cc D_0
aa B_C_D_79A_ bb C_ dd0
A_bb C_D_0A_ B_ cc dd73
A_ B_ cc D_59aa bb cc D_0
A_ B_ C_ dd76aa bb C_ dd0
aa bb C_ D_0aa B_ cc dd81
aa B_ cc D_97A_ bb cc dd0
aa B_ C_ dd74aa bb cc dd0

Based on these results, the breeder is confident that they knowthe original plant’s genotype. Make a hypothesis about thegenotype, and test it with a χ2 test. Show this test on a separatepage.

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