In the Yawncat (A Rare Hypothetical Animal), the Dominant Allele

question 67

Multiple Choice

In the yawncat (a rare hypothetical animal) , the dominant allele R causes solid tail color, and the recessive allele r results in white spots on a colored background. The black coat color allele B is dominant to the brown allele b, but the B and b alleles can only be expressed if the animal has an mm genotype at a third gene locus. Animals that are M_ are yellow regardless of which allele from the B locus is present. A mating between a solid yellow-tailed male yawncat and a solid brown-tailed female yawncat produces 16 offspring with the following tail phenotypes: six solid yellow, two spotted yellow, three solid black, one spotted black, three solid brown, and one spotted brown.
- What is the MOST likely genotype of the male parent?

• A) MM BB RR
• B) MM Bb RR
• C) Mm Bb RR
• D) Mm BB Rr
• E) Mm Bb Rr

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