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.
McCormick horse drawn mower . Plano Harvester horse drawn mower. Massey Harris horse drawn Cultivator. This is my Cockshutt horse drawn potato scuffler This is a planet Jr. garden horse drawn Cultivator. This is my horse drawn Hoosier seeder made by IHC (hoe type) Built from 1884 to 1948. This is my horse drawn solid steel scraper ,with runner. This is a John Deere double action JB disk harrow 8 foot dubble disk My BZPT24D6 Dubble-Disk Case Grain Drill A unknow brand Dump Style Hay Rake, early 1900's This is my IHC, horse drawn hay rake that I got at action , this hay rake would be early 1900's.