backcross
The cross of an individual (F1) with one of its parents (P) or an organism with the same genotype as a parent. backcrosses can be used to help identify the genotypes of the individual in a specific type of backcross called a testcross.Example:P: AA x aaF1: Aabackcross-1: Aa x AA Progeny-1: 1/2 Aa and 1/2 AAbackcross-2: Aa x aaProgeny-2: 1/2 Aa and 1/2 aa
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