Part 2: Monohybrid Cross. How much genotypic variation do you find in the randomly picked parents of your crosses? How much in the offspring? How much phenotypic variation? Is the ratio of observed phenotypes the same as the ratio of predicted phenotypes? Why or why not? Pool all of the offspring from your five replicates.
answer 2. The combine harvester, or simply combine, is a machine that harvests grain crops. The first harvesting machines were devised by Patrick Bell in Scotland and Cyrus Hall McCormick in the United States. McCormick invented his first reaper at the age of 22 and tested it in a neighbor's field in 1831.he first harvesting machines were devised by Patrick Bell in Scotland and Cyrus Hall McCormick in the United States. McCormick invented his first reaper at the age of 22 and tested it in a neighbor's field in 1831.
The combine harvester, or simply combine, is a machine that harvests grain crops. The name derives from its combining three separate operations comprising harvestingâreaping, threshing, and winnowingâinto a single process. Among the crops harvested with a combine are wheat, oats, rye, barley, corn (maize), sorghum, soybeans, flax (linseed), sunflowers, and canola.