In this family tree, the father in the first generation shows a particular trait (as indicated ... brown body color is the dominant phenotype, and black body color is the recessive phenotype.

Consequently, a test cross can help determine whether a dominant phenotype is homozygous ... with an organism that is homozygous for the recessive trait, and the offspring of the test cross ...

The tall allele is dominant and is shown as T ... of the genotypes are homozygous recessive, and will therefore show the recessive trait. In this genetic cross, the female alleles are Dd and ...

Recessive traits may skip generations and will affect both genders equally. An example of an autosomal recessive condition is cystic fibrosis. Cystic fibrosis close cystic fibrosisA disorder that ...