Male pattern baldness is a se×-linked trait, carried on the X se× chromosome. Therefore, genetics is a contributing factor to premature balding is true.
Traits which are inherited as autosomal recessive trait need the presence of two copies of the recessive allele in order to produce the phenotype.
In contrast, in se×-linked traits, only a single copy of recessive allele is enough to produce the phenotype in males. It is because the males are heter0zygous in terms of se× chromosome.
They carry one copy of the X chromosome and one copy of the Y chromosome. So, only a single copy of allele is enough to produce the phenotype.
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