If a certain water-soluble, intravenous antibiotic is not succeeding in defeating the germs inside the central nervous system, the ________ may be preventing the antibiotic from reaching the brain
Fill in the blank(s) with correct word
blood-brain barrier
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The word hormone comes from the Greek word meaning
a. target. b. response. c. secretion. d. set in motion. e. internal gland.
Which of the following would be transcribed into mRNA?
A. a promoter B. a ribozyme C. a noncoding gene D. a protein-coding gene
The G2 checkpoint prevents entry into _______ if _______.
a. G1; DNA synthesis is not complete and/or DNA is damaged b. S; DNA synthesis is not complete and/or DNA is damaged c. G2; DNA synthesis is not complete and/or DNA is damaged d. M; DNA synthesis is not complete and/or DNA is damaged
Which of the following sets of characteristics describes the highest level of threat potential from biological weapons?
A. a waterborne toxin that is easily introduced into public water supplies and does not replicate in humans B. a pathogen of livestock transmitted by contact with infected animals but not infected people C. a human pathogen easily produced as an aerosol and transmissible by respiratory aerosols D. a pathogen of wheat that could be delivered using crop dusters E. a microbe that can be introduced into food during packaging and withstands refrigerator temperatures but not typical cooking temperatures