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Hey, I missed this post somehow! This may answer the question of why the boys can survive the high temps that the girls can't. I had forgotten that in poultry the males have the two versions of the same chromosome, thus giving them a second option in development, so the possibility of rejecting an inferior phenotype for a better, stronger option. The girls are stuck with the one version that they're given. I know it works something like this in human development, but opposite for the male/female XY vs XX.
Hey, I missed this post somehow! This may answer the question of why the boys can survive the high temps that the girls can't. I had forgotten that in poultry the males have the two versions of the same chromosome, thus giving them a second option in development, so the possibility of rejecting an inferior phenotype for a better, stronger option. The girls are stuck with the one version that they're given. I know it works something like this in human development, but opposite for the male/female XY vs XX.
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