A Drosophila parent fly heterozygous for alleles for black body, dumpy wings, and purple eyes was test-crossed to a fly that was homozygous recessive for all three genes. The genes are all on the same chromosome. The offspring had the following phenotypes in the following numbers:
What were the genotypes of the chromosomes in the parent? Please select all that apply.
A) b+ p+ d+
B) b p d
C) b+ p d+
D) b p+ d
E) b+ p+ d
F) b p+ d+
Correct Answer:
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