Unformatted text preview: 10 Monohybrid testcross segregation Testcross is a backcross (BC) to the recessive homozygote
(called tester) Parents: F1: BC Aa Genotypic ratio:
Important point! The cross with the recessive homozygote (tester) is used to determine the genotype of the dominant phenotype. Hence the term testcross. ...
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- Winter '08