The method of DNA replication, where each original strand is used as a template to build a new strand, is called the
A. conservative method.
B. semiconservative method.
C. disruptive method.
D. continuous method.
E. replication and amplification method.
B. semiconservative method.
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The chemical bonds of carbohydrates and lipids have high potential energy because:
A. they are strong oxidizing agents. B. they are strong reducing agents. C. their electrons are far away from the nuclei of the atoms. D. they are easy to phosphorylate. E. they are easy to hydrolyze.
Flatworms
a. are radially symmetrical. b. possess a body cavity. c. reproduce by parthenogenesis. d. have tissues derived from all three primary germ layers.
You are studying a newly identified infectious disease within a population. Think of the typical graph of the course of infection--incubation period through to convalescent period. The new disease reveals a course of infection characterized by fluctuating symptoms, with intermittent periods of invasion (acute period) between prodromal periods. The whole course of infection occurs over a period of months or even years. Based upon the information presented, select the statement that most accurately reflects this new infectious disease.
A. The host has immune problems and this is the typical course of a disease for that population. B. Viral infections always present with this type of disease course. C. This infectious disease exhibits latency. D. This is not an infectious disease at all.
Protons are pumped in which stage of photosynthesis?
A. light-capturing B. light-dependent reactions C. light-independent reactions D. glycolysis