Quote Originally Posted by Bojacc357
The other 38 don't control sex, reproduction, mental function, and part of the skeletal genetics as the X chromosome. The Y chromosome is maintainly tied to fertility. The other chromosomes called autosomes link the brain to cells, control color, appearance of physical features, and

they aid in the growth and repairing of cells. Simple as that.
by SIPHO P. KUNENE

Yet are we not interested in passing all of those things down? Are those traits (brain function and physical features) not VITAL to the success of a performance dog, and actually what we base our choices of selection on?