A genetic trait might be caused by incomplete dominance if:
A. a black, white, and gray mouse produces only white offspring.
B. a white mouse and a black mouse produce only black offspring,
C. two gray mice produce black, white, and gray offspring.
D. two white mice produce only gray offspring.

Incomplete dominance is when a dominant allele, does not completely mask the effects of a recessive allele, and the organism's resulting physical appearance shows a blending of both alleles.

if a gray mouse has a Bb genotype (B black, b white) and the two mice produce black/white offspring they would have either gotten two B alleles or two b alleles.

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A genetic trait might be caused by incomplete dominance if: A. a black, white, and gray mouse produces only white offspring. B. a white mouse and a black mouse produce only black offspring, C. two gray mice produce black, white, and gray offspring. D. two white mice produce only gray offspring.

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A genetic trait might be caused by incomplete dominance if:
A. a black, white, and gray mouse produces only white offspring.
B. a white mouse and a black mouse produce only black offspring,
C. two gray mice produce black, white, and gray offspring.
D. two white mice produce only gray offspring.