A person who may have been exposed to yellow fever may be placed under quarantine
a. true
b. false
Ans: a. true
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The mitotic stage in which the chromosomes condense, nuclei disappear, and the mitotic spindle begins to form is known as:
A. prophase. B. metaphase. C. anaphase. D. telophase. E. interphase.
Electron microscopes differ from light microscopes in that
A. electrons replace light. B. electromagnets replace glass lenses. C. resolution is higher. D. magnification is higher. E. All of the choices are correct.
Choose the one most appropriate response for each. Some letters may not be used.
A. B. Lorenz C. Instinctive behavior D. E. Learning F. Operant conditioning G. Lek H. Imprinting I. Altruism
Which of the following statements about the differences between prokaryotic and eukaryotic genomes is FALSE?
A. Chromosomes of prokaryotes have little repetitive DNA compared with chromosomes of eukaryotes. B. Eukaryotic genomes have telomeres, whereas prokaryotic genomes do not. C. Prokaryotic genomes have centromeres, whereas eukaryotic genomes do not. D. Prokaryotic genomes are less complex than eukaryotic genomes. E. Prokaryotic genomes have one origin of replication, whereas eukaryotic genomes have multiple origins of replication.