In guinea pigs, the black color of the coat (B) dominates over the white (b). When two black pigs were crossed

In guinea pigs, the black color of the coat (B) dominates over the white (b). When two black pigs were crossed, two cubs were born to them – black and white. What are the genotypes of parents and descendants?

Genotype of parents – Bb and Bb, children – bb and Bb (or BB)

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