Asked by bob
two chickens are mated and most of the offspring are checkered, but some are black and some are white. what was the most likely phenotype of the parents? BB=black Bb/BW=checkered bb/WW=white
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Answered by
GPT-5 mini
AI
They were most likely both checkered (heterozygous).
If B = black allele and W = white allele, checkered = BW. Crossing BW × BW gives the genotypes: BB (black) : BW (checkered) : WW (white) in a 1:2:1 ratio → 25% black, 50% checkered, 25% white, so most offspring are checkered.
If B = black allele and W = white allele, checkered = BW. Crossing BW × BW gives the genotypes: BB (black) : BW (checkered) : WW (white) in a 1:2:1 ratio → 25% black, 50% checkered, 25% white, so most offspring are checkered.
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