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Among a species of butterflies, the color blue (B) is a dominant trait. Yellow color (b) is a recessive trait. If a pure blue butterfly (BB) mates with a pure yellow (bb), what will the offspring look like?

User Caroline
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Answer:

A. They will all be blue.

Step-by-step explanation:

User Printfmyname
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2 votes
100% of the offspring would have the genotype Bb, and the phenotype of the blue color.
User Colin Thomsen
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