It's been a long time (high school) since I did any study of biology. I know that in some species the female is larger and/or dominant over the male. I know that in some other species the opposite is true. I know that in some species the male is brightly colored and flamboyant while the female is plain and unremarkable. I can't think of any counter-example, but I'm sure there is one, where the female is colorful while the male is plain. I know that in chickens, there is a way to breed "sex-link" variants where the males and females are easily distinguished based on color (but this is the result of breeding a male of a certain breed with a female of different breed, and the sex-link progeny are not reproducible down the line). I know that chihuahuas and Great Danes were selectively bred from the same common ancestor, and while their size and appearance differs greatly from each other, the size and appearance between males and females within the respective breeds are similar.
Could selective breeding target traits in only one sex? For example could you make a breed of dog where the female is twice the size of a male? Or a breed where the females are brown and the males are black?
Could selective breeding target traits in only one sex? For example could you make a breed of dog where the female is twice the size of a male? Or a breed where the females are brown and the males are black?
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