An antimicrobial is described as preventing alanine-alanine bridge formation. This means it
A. prevents folic acid synthesis.
B. interferes with cytoplasmic membrane synthesis.
C. blocks glycocalyx synthesis.
D. interferes with protein synthesis.
E. prevents cell wall synthesis in bacteria.
Answer: E
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If Tina is a carrier, what is the chance that she will have a son with Hemophilia A?
a. No chance (0%). All sons would be normal. b. She can expect 50% of her sons to have Hemophilia A. c. All of her sons will have Hemophilia A d. Not enough data is given.
The anticipated pleasure of a behaviour is called its:
(a) positive-incentive value (b) incentive salience (c) gratification value (d) behavioural salience
Which statement does not represent one of Darwin's observations?
A. All individuals have an equal chance to survive and reproduce. B. Changes in populations are gradual and take place over long periods of time. C. Members of the same species may exhibit considerable variation. D. Some characteristics are heritable and passed on to offspring. E. Some characteristics afford their possessor a better chance of survival.
During reactions catalyzed by oxidoreductases an electron donor is
A. oxidized. B. reduced. C. synthesized. D. degraded. E. unaltered.