Because of its longer shelf life, the medium of choice to cultivate Bordetella spp. is:
a. buffered charcoal yeast extract (BCYE).
b. thiosulfate citrate bile salts sucrose (TCBS) agar.
c. Bordet-Gengou agar.
d. Regan-Lowe agar.
D
Regan-Lowe agar contains charcoal agar with 10% horse blood and cephalexin and has a 4- to 8-week shelf life, whereas Bordet-Gengou agar contains potato infusion agar with glycerol and sheep blood with methicillin or cephalexin and has a short shelf life. BCYE is the medium of choice for cultivating Legionella spp., and TCBS is the medium of choice for cultivating Vibrio spp.
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Match the neuron structure on the left with its function or property on the right.
A) concentrated in regions of electrical activity B) neurotransmitter vesicles C) junction between one neuron and another D) nucleus and other organelles E) axon cytoplasm F) oligodendrites and Schwann cells G) conduct signals inward H) conducts signals outward I) conduct signals outward 1) myelin sheath 2) cell body 3) dendrites 4) axon 5) synaptic boutons 6) nodes of Ranvier 7) axoplasm 8) synapse
In forensics, the laws in the United States and elsewhere allow the establishment of databases of PCR amplification of short tandem repeats (STRs) of the Y chromosome
Which of these statements would provide an appropriate basis for making such databases divided by ethnicity? A) Different heritage groups have different levels of such polymorphisms. B) It would be easier to evaluate suspects of different ethnicities. C) It would show detectives which ethnic category they should be looking for. D) Most crimes of certain types are found among certain groups. E) Y polymorphisms increase with the probability of criminal behavior.
Phospholipase C catalyzes the reaction in which:a
PIP2 is split. b. IP3 is converted to DAG. c. a protein kinase is activated. d. DAG is converted to PIP2. e. calcium ions are released from the ER.
Which of the following departments is likely to experience experimental data more frequently than nonexperimental data?
A. Pricing B. R&D C. Marketing D. HR