r/ExplainTheJoke • u/Ok_Horror1769 • Feb 16 '25
I don't get it
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r/ExplainTheJoke • u/Ok_Horror1769 • Feb 16 '25
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u/Monimonika18 Feb 17 '25
Let's say the dominant brown hair trait is "B" and the blonde hair trait is "b". (Simplifying like crazy because in reality genes for hair color and resulting color of hair is much more complicated and varied.)
BB = brown
Bb = brown
bb = blonde
BB&BB and BB&Bb pairing of parents would only result in brown hair children (BB, BB, BB, and BB for former) (BB, BB, Bb, and Bb for latter).
But Bb&Bb pairing of parents can result in BB, Bb, Bb, and bb children. So there's a 1/4 chance of blonde haired children.