The microscope that allows the specimen to appear three-dimensional is the
A.
phase contrast microscope.
B.
interference microscope.
C. fluorescence microscope.
D. dark-field microscope.
B
Biology & Microbiology
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A gene is a DNA sequence that codes for a
protein or
a. RNA. b. DNA. c. ribosomes. d. a lipid. e. more than one of these.
Biology & Microbiology
Which of the followings statements concerning the preprophase band is false?
a. It appears just prior to mitosis. b. It helps orient the mitotic spindle. c. It determines the plane of cell division d. It is found in both plant and animal cells. e. It is composed of microtubules.
Biology & Microbiology
Which are the thinnest blood vessels?
A) Bronchioles B) Capillaries C) Arterioles D) Venules
Biology & Microbiology
Viruses that attack prokaryotes are called
A) bacteriophages. B) prions. C) human pathogens. D) viroids. E) host cells.
Biology & Microbiology