Visible, clear, well-defined patches in a monolayer of virus-infected cells in a culture are called
A. lysogeny.
B. plaques.
C. pocks.
D. budding.
Answer: B
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Prosimians are:
A. small, primitive primates B. professional animal trainers C. primitive australopithecines D. the most advanced primates E. none of the choices provided
Molecular homology can be compared by analyzing the
A. sequences of amino acids of various proteins in different species. B. elemental makeup of different species. C. positions of genes on the chromosomes of different species. D. vestigial structures of different species. E. protein structure during development.
What type of medium is used to demonstrate oxygen requirements of microbes?
A. Sulfite polymyxin sulfadiazine B. Blood agar C. Thioglycollate D. Sodium chloride
When growing conditions are not right, many bacteria form
A. Antibodies B. Acid C. Buds D. Endospores