prepotency

n. 优势, 遗传优势
【医】 优性, 遗传优势

pre.po.ten.cy

n.（名词）
The condition of being greater in power, influence, or force than another or others; predominance.
优势：比别人具有更大的权势、影响、权力的状态；优势
Genetics The ability of one parent, variety, or strain to transmit individual traits to an offspring, apparently to the exclusion of the other parent, variety, or strain.
【遗传学】 优先遗传：父母一方的某些品种或品系具有的将自身特点传给后代的能力，并明显地排斥了父母另一方，另一种品种或品系的作用