Male pattern baldness is sex-influenced, not sex-linked. That means that the gene is found on an autosome, not a sex chromosome. Because males make testosterone, it only takes one allele for a male to be bald. It takes two alleles for a female to have male pattern baldness. Actually a male could have inherited his baldness gene from either parent, so I don't believe the statement is true. Is it true that genetically hair loss patterns in a man can be traced back to the mother's father?
That's what I've heard too. I've seen it happen that way so I guess it has some meritIs it true that genetically hair loss patterns in a man can be traced back to the mother's father?
Yes, because the mother's father could have passed down the hair loss to the mother, but she would be a carrier for this trait because it isn't expressed normally in females. So she would have this in her genetic makeup, so she could pass it on to her son, the man. But it can be expressed in males, so he could have hair loss.
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