_______________ are organisms without membrane-bound nuclei.
Fill in the blank(s) with the appropriate word(s).
Ans: Prokaryotes
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Viral release from a eukaryotic cell
A. requires the production of lysozyme encoded by the viral genome. B. requires the production of lysozyme encoded by the eukaryotic genome. C. is essential to envelope formation. D. kills the infected cell. E. requires the production of lysozyme encoded by the viral genome and kills the infected cell.
Which characteristic distinguishes humans from other primates?
a. complexity of the brain b. walking upright c. using tools d. body hair e. manual dexterity
When researchers wish to make multiple copies of a gene without first inserting it into a bacterium, they employ the
A. polymerase chain reaction. B. pepsin activation reaction. C. gel electrophoresis. D. centrifuge.
Bacteria that grow in mine drainage at pH 1-2 are probably which of the following?
A. alkaliphiles B. acidophiles C. neutrophiles D. obligate anaerobes