During the ____ cycle, viral DNA, which has been inserted into the host DNA, remains mostly or completely inactive
but is replicated and passed onto host cell progeny
a. lytic
b. lysogenic
c. Krebs
d. citric acid
e. lytic or lysogenic
ANSWER: b
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Which of the following is NOT true of a stress or "fight-or-flight" response?
A. Energy stores such as adipose tissue and glycogen are broken down to mobilize fatty acids and glucose. B. The heart rate increases and airways are dilated to promote maximum oxygen intake. C. Elevations in cortisol are needed to increase glucose. D. Catabolic hormones are activated. E. Leptin levels are increased to enhance appetite.
Which soil region extends to the underlying bedrock, and consists of mineral particles and rock fragments but generally no organic material?
a. A horizon b. B horizon c. C horizon d. D horizon e. O horizon
Consider the work Mendel did with his pea plants. Why is the study of human genetics much more difficult? What will be an ideal response?
Which term best describes the movement of ions and large molecules across membranes via transport proteins against their concentration gradient?
a. passive diffusion b. a symport c. facilitated diffusion d. active transport