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Updated: May 22, 2025
In the bird-castration cases, we saw that to remove the inhibiting sex glands caused previously latent characters to act like dominant or expressed ones. The case of horns in sheep, investigated by Professor Wood , is so similar that it seems worth summarizing, by way of illustration. Both sexes in Dorset sheep have well-developed horns; in the Suffolk breed both sexes are hornless.
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