Human sexual dimorphism

[rupol2000]

If we inherit from two parents, then such traits as growth and type of body should also be inherited, therefore the difference between the sexes should gradually decrease, due to averaging (such as mulatto skin)but evolutionarily it, on the contrary, increased. How can this be explained?

 

[Meister]

Shouldn't this be in JAMA magazine?

 

[alang1216]

If we inherit from two parents, then such traits as growth and type of body should also be inherited, therefore the difference between the sexes should gradually decrease, due to averaging (such as mulatto skin)but evolutionarily it, on the contrary, increased. How can this be explained?

Some traits are on the XY chromosome.