Which of the following is the best definition of "empty magnification"?
A) An image is magnified so much resolution and contrast are lost.
B) A specimen is so lacking in color it cannot be observed on a light microscope.
C) A magnified specimen is so small it cannot be resolved on a light microscope.
D) The background on the field is almost totally black.
E) A magnified image has lots of empty space around a small object.
A
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Rods and cones are located in the:
a. lens b. cornea c. pupil d. iris e. retina
A tracer is a substance with what attached to it?
a. a radioisotope b. water c. glucose d. ion e. antibodies
You expose a tube of bacteria to ultraviolet radiation to induce mutations. You then spread the bacteria on a plate containing media with all known required nutrients and wait until separate colonies form. Finally, you use replicate plating to transfer a print of this plate to an additional sterile plate containing minimal media plus a known required nutrient for the bacteria. Based on this protocol, colonies growing on the plate with minimal media would include what type of cells?
A. only mutant bacteria B. mutants that only require the supplied nutrient C. Both wild-type and all mutants D. only wild-type bacteria E. wild-type bacteria and the mutants that only require the supplied nutrient
A condition in which the bone is broken down faster than it is built is known as ________
Fill in the blank(s) with correct word