Gamete formation. Polygenic traits. If the alleles for a trait did not segregate during gamete formation. Decide which organisms are best to use in genetic crosses. If alleles did not segregate during gamete formation, a. Canon Eos-1n Repair Manual. All of the F. Polygenic traits. Make controlled crosses between plants. Prevent cross-pollination. Best Adobe Photoshop Elements 4.0 Editor - And Reviews. Variation in human skin color is an example of a. Multiple alleles. Polygenic traits. Incomplete dominance. Linked genes a. Are on the same chromosome. Are always recessive. Assort independently. Are never separated.

A for one of Mendel's pea plant experiments – of the F1 generation Mendel discovered that, when he crossed purebred white flower and purple flower pea plants (the parental or P generation), the result was not a blend. Rather than being a mix of the two, the offspring (known as the F 1 generation) was purple-flowered. When Mendel the F 1 generation pea plants, he obtained a purple flower to white flower ratio in the F 2 generation of 3 to 1. The results of this cross are tabulated in the to the right.