Why is PCR useful?
A) It allows fragments of DNA to be separated by size.
B) It is essential for making many copies of a transgenic animal.
C) It allows for making many copies of DNA when the starting sample is small.
D) It is required for the introduction of DNA into reproductively cloned animals.
Answer: C
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Which of the following is a possible social consequence of long-term exponential growth in the human population?
a. Increased life expectancy b. Increased crime c. Harnessing of energy in fossil fuels d. Higher fertility rates
Why would a patient with a defect in the obese (ob) gene continue to gain weight while a patient with the normal gene would not? Assume they both eat the same diet and are the same height
What will be an ideal response?
Suppose you take a cell from an adult cow and attempt to use it to produce a clone of that cow. If telomerase is not
functioning in that cell or in any of the cell’s progeny, what would you expect to happen to your clone?
a. The clone will be unable to grow. b. When the clone matures, it will most likely have cancer. c. The clone's cells may divide, but after a certain number of generations, cell division will stop. d. The lack of telomerase should have no effect on the clone. e. When the clone matures, it will most likely be sterile.
Most ATP is formed by the process of
a. glycogenolysis. b. phosphorylation. c. cellular respiration. d. fermentation. e. anaerobic respiration.