Compared to conventional agriculture, organic farming
A) uses fewer synthetic pesticides.
B) increases crop yields.
C) guarantees the safety and extra health benefits of food.
D) requires much less hands-on work.
Answer: A
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One important advantage of eukaryotic cells as hosts for cloning vectors is that they already possess the complex RNA and posttranslational processing systems required for the production of eukaryotic proteins
Indicate whether the statement is true or false.
Which factors govern the rate of primary productivity in freshwater and marine ecosystems?
a. availability of water b. availability of sunlight and nutrients only c. depth of the water only d. depth of the water and availability of sunlight and nutrients e. availability of oxygen
Cloning plasmids generally contain genes for which two traits?
a. lacZ and ampR b. beta-galactosidase enzyme production and ampicillin resistance c. DNA ligase production and sticky ends d. DNA circulase and DNA recombinase enzyme expression e. DNA replication ability and antibiotic resistance
Embryonic cell cycles allow the rapid division of cells in the early embryo. These mitotic cell cycles are much shorter in length than the mitotic cell cycles of cells in a mature organism. In the embryonic cell cycles, mitosis takes approximately the same amount of time as it does in the cell cycles of mature cells. What do you think is a result of the embryonic cycle?
A. Resulting daughter cells do not contain the same genetic information as the mother cell in the embryonic cell cycles. B. Mother cells in the embryonic cell cycle spend the majority of their time in G0. C. Resulting daughter cells cannot form a mitotic spindle in the embryonic cell cycle. D. Resulting daughter cells are smaller than the mother cell in the embryonic cell cycles.