You are a doctor who examines a swollen and warm puncture wound on the hand of a patient. Indicate which of the following statements are true and which are false. ______ The wound is swollen and red due to vasoconstriction
______ The wound breached the first level of the patient's innate immune system: the skin.
______ The wound may require both the innate and the adaptive immune system in order to
heal.
______ The wound is swollen and red due to vasodilation.
______ Cells in the wound are secreting antihistamines .
What will be an ideal response?
f The wound is swollen and red due to vasoconstriction.
t The wound breached the first level of the patient's innate immune system: the skin.
t The wound may require both the innate and the adaptive immune system in order to heal.
t The wound is swollen and red due to vasodilation.
f Cells in the wound are secreting antihistamines .
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Activator proteins in prokaryotes experience shape changes in the presence or absence of small molecules. As a consequence: (Select all correct choices)
A. they may activate genes needed only when such a small molecule is present in the cell. B. they may activate genes necessary to synthesize a specific small molecule. C. they are unable to act alone.
A student is studying the localization of mRNA in the cell. The cells are treated with a monoclonal antibody to a protein contributing to processing (P) body structure. Which part(s) of the cell would most likely show immunofluorescence?
A. nucleus B. cytoplasm C. both nucleus and cytoplasm D. cannot be determined
Which control method would not be a suitable choice for killing Mycobacterium in a capped culture tube?
A. Ultraviolet (germicidal) light B. 160°C for 2 hours C. 121°C at 15 psi for 15 minutes D. Gamma rays E. All of the choices are correct.
Typical soils of the temperate forest region are
A) alfisols and inceptisols. B) oxisols. C) andosols. D) aridisols and vertisols.