back.cross
v.tr.（及物动词）
back.crossed,back.cross.ing,back.cross.es
To cross (a hybrid) with one of its parents, or with an individual genetically identical to one of its parents.
反交，回交：与（一混血儿）父母的一方或与其父母中在个体遗传方面完全一致的一方的杂交
n.（名词）
The act of making such a cross.
逆代杂交：这种杂交的行为
An individual resulting from such a cross.
逆代杂交个体：从这样的杂交产生的个体
【引伸】
back.cross.
n.（名词）
