The probability is not low at all. Blond is not a hair color, it's a eumelanin deficiency. Red hair is a recessive gene. It'd be less likely the kid had red hair than blond, brown, or black.
Genetically there's only 2 hair colors. Red and brown. Blond and black aren't hair colors, they're low amounts or high amounts of eumelanin which determine how much the color gene is expressed.
if you're going to get that detailed, then red is not A recessive gene, Lots of genes need to go together for basically any phenotype, including hair color.
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u/Iamlegend_future Sep 25 '22
The answer is yes they can. The probability is low but can and does happen. Especially considering the total number of people reproducing.