What is the function of restriction enzymes in bacteria?
A) They function in protein production.
B) They cut foreign DNA, for example, the DNA of invading viruses.
C) They cut the bacterial cell's chromosome so that it is more easily transformed.
D) They are used to repair DNA mutations.
Answer: B
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Insulin-like growth factor I is produced in response to
A. growth hormone. B. cortisol. C. prolactin. D. adrenocorticotropic-releasing hormone. E. thyroid hormone.
What structure is responsible for the exchange of gas in leaves?
a. Aerenchyme b. Propagule c. Lenticels d. Stomata
One of the disadvantages of the C4 pathway is that it requires
A. more light. B. more NADPH. C. a much higher temperature. D. more O2. E. more ATP.
The production of light by an organism is called ____.
A. autophotoproduction B. bioluminescence C. luminarianism D. autoillumination E. bioillumination