In the genetic mapping exercise we have talked about this semester, mutant virgin female flies were mated with wild type male flies and the phenotype of the F1 offspring from this first cross were scored and used to set up a second cross on March 1. When the first F2 progeny begin to emerge, they seem to be mostly wild type flies. Explain why we might see this and how these results might affect the genetic map we are creating from the F2 data.

Along what geographical feature are most of the oil producing regions located

Recently, crops of vegetables such as lettuce and green onions have been contaminated, while they are still on the farm, with bacteria that cause food poisoning. how will science influence the way the government responds to prevent an increase in food-borne diseases? because science has shown that lettuce and green onions are not nutritionally valuable, the government may pass laws that ban the sale of lettuce and green onions. because science has shown that there is no way to prevent bacterial contamination, the government may pass laws that punish businesses that buy lettuce and green onions. because science has shown that the washing of hands prevent the spread of infectious diseases among people, the government may pass laws that require hand washing by everyone who handles food. because science has shown there are ways to find the source of the contamination, the government may pass laws that require farm practices that reduce the contamination of lettuce and green onions.

Compare and contrast your sells take in oxygen, water, and food. what is one waste product that leaves your cells?