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backcross

back·cross [ bák kràwss ]


transitive verb  (past and past participle back·crossed, present participle back·cross·ing, 3rd person present singular back·cross·es)
Definition:
 
cross hybrid with parent: to cross an organism, especially a hybrid, with one of its parents or an individual genetically identical to that parent



noun  (plural back·cross·es)
Definition:
 
1. hybrid obtained by backcrossing: a hybrid obtained by backcrossing organisms

2. act of backcrossing: the act or the process of backcrossing organisms

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