What are the genotypic ratios expected for the offspring of the cross?
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On the left is the expected phenotypic ratio of the offspring from a BbVv × bbvv cross (1:1:1: 1). However, because the alleles BV and bv ...
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If, the male is Bb as above and you perform a testcross, 50% of all offspring should have the bb genotype and a white phenotype. A testcross to a heterozygous individual should always yield about a 1:1 ratio of the dominant to recessive phenotype. So, both the genotypic and phenotypic ratios here are 50:50
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