What are the genotypes of the parents

Q1. A cross of black chicken (BB) with the white chicken (WW) produces all speckled offspring (BBWW). This type of inheritance is known as what?

Q2. In dogs, black (B) is dominant to chestnuts (b), and solid colour (S) is dominant to spotted (s). What are the genotypes of the parents that would produce a cross with 3/8 black solid, 3/8 black spotted, 1/8 chestnut solid, and 1/8 chestnut spotted puppies?

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