crossbreed,hybrid,cross- (genetics) an organism that is the offspring of genetically dissimilar parents or stock; especially offspring produced by breeding plants or animals of different varieties or breeds or species; "a mule is a cross between a horse and a donkey" ...
To do a dihybrid cross, the first step is to start with two parents who are homozygous for two traits. Each parent gives one allele for each trait. The following diagram illustrates the parents with two sets of homozygous characteristics. So the offspring in the {eq}F_{1} {/eq} generat...
This step is the dihybrid cross, and it is represented as: RrYy x RrYy Mendel observed that the F2 progeny of his dihybrid cross had a 9:3:3:1 ratio and produced nine plants with round, yellow seeds, three plants with round, green seeds, three plants with wrinkled, yellow seeds...
The first step in the dihybrid cross is the selection of characters as well as parents that are to be crossed. The pure lines are obtained by selfing the individuals for three generations which confirms the presence of pure lines. 2. Designation for the characters The alleles for the two ...