In Griffith's experiments,
A. mice infected with live nonvirulent bacteria developed pneumonia and died.
B. nonvirulent bacteria transformed the virulent bacteria into a nonvirulent variety.
C. mice infected with heat-killed virulent bacteria and live nonvirulent bacteria developed pneumonia and died.
D. mice infected with heat-killed virulent bacteria and heat-killed nonvirulent bacteria developed pneumonia and died.
C. mice infected with heat-killed virulent bacteria and live nonvirulent bacteria developed pneumonia and died.
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Was this a pre-mating or post-mating barrier?
a. pre-mating barrier, because individuals do not mate b. post-mating barrier, because hybrids are produced but they do not reproduce c. pre-mating barrier, because fertilization occurs but the hybrids are not viable d. post-mating barrier, because hybrids are sterile and unable to mate
If Ca+ is restricted to a muscle cell, what are the potential consequences?
A. ATP is not split causing the release of energy. B. The myosin filament would not slide past the actin filament causing a contraction. C. The myosin head would not be able to bind to the actin filament. D. All of these are potential consequences. E. None of these are potential consequences.
Which statement most aptly describes the body of a fungus?
A. Tiny threadlike septa collectively make up the mycelium. B. Tiny threadlike mycelia collectively make up the septa. C. Tiny threadlike mycelia collectively make up the hypha. D. Tiny threadlike hyphae collectively make up the mycelium. E. Tiny threadlike mycelia collectively make up the dikaryote.
The ________ is comprised of the fluid portion of the cell and contains the organelles.
Fill in the blank(s) with the appropriate word(s).