Correct 回交 / huíjiāo / Strokes Definition backcrossing (i.e. hybridization with parent) Example As a Verb backcross 1 Huí 回 jiāo zǐ 交子 dài 代 Copy Pinyin Sentence backcross progeny 2 Huí 回 jiāo 交 zá zhǒng 杂种 Copy Pinyin Sentence backcross hybrid 3 Huí 回 jiāo qīn 交亲 běn 本 Copy Pinyin Sentence backcross parent