If segregation does NOT occur, the result will be
A. crossing-over.
B. independent assortment.
C. nondisjunction.
D. fertilization.
C. nondisjunction.
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Which activity of the virally invaded cell triggers production of interferon?
A. Activation of rRNA B. Movement of nuclear proteins to the cytoplasm C. Production of glycolipids D. Production of dsRNA
Which of the following are used to distinguish species from one another?
A. differences in the physical characteristics of organisms B. differences in behavior C. differences in metabolism D. All of the choices are correct.
Active transport is transport
a. in an energetically unfavorable direction always driven by hydrolysis of ATP. b. in an energetically unfavorable direction always coupled to another reaction or source of energy. c. in an energetically unfavorable direction driven only by the flow of another molecule across a membrane. d. in an energetically favorable direction coupled to the hydrolysis of ATP.
Acidic dyes are commonly used for ________ stains.
A. acid-fast B. negative C. flagellar D. endospore E. Gram