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Moderate

Gene Relationships

APBIO-F8IENL

Researcher Thomas Hunt Morgan crossed a wild type female fruit fly heterozygous for the traits cinnabar eyes and vestigial wings with a male fruit fly displaying both traits.

The number of offspring produced was 965 with wild-type wings and eyes, 185 with wild-type eyes and vestigial wings, 206 with cinnabar eyes and wild type wings, and 944 with cinnabar eyes and vestigial wings.

Which of the following BEST describes the ratios of the offspring?

A

Simple dominance and linked genes.

B

Incomplete dominance.

C

Sex-linked genes.

D

Simple dominance.