A testcross with f1 monohybrid flies where more familial offspring than chimeric offspring are generated can be explained by the two genes being closely connected on the same chromosome.
Another important tool developed by Gregor Mendel is the test cross. A test cross is a genetic experiment that includes crossing a homozygous recessive organism with a dominant phenotype with just an unknown genotype (and phenotype).
An individual is bred to another that is heterozygous again for recessive trait in a ’s ready, and the children of the ’s ready are then evaluated.
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