Agostino Bassi demonstrated that a type of silkworm disease was caused by a fungus and proposed that many diseases are caused by microorganisms.
Answer the following statement true (T) or false (F)
True
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Sergei Winogradsky worked with bacteria involved in cycling nitrogen and sulfur
Indicate whether the statement is true or false.
A gram-positive bacillus, which grew on Tinsdale agar, is esculin hydrolysis–negative, urease-positive, and nonlipophilic. The organism can be identified as:
a. C. diphtheria. b. Corynebacterium glucuronolyticum. c. Corynebacterium xerosis. d. Corynebacterium ulcerans.
All of the following statements are TRUE regarding lung cancer EXCEPT which one?
A) Symptoms include chest pain, chronic cough, and wheezing. B) One hundred percent of lung cancers are caused by smoking or exposure to cigarette smoke. C) Lung cancer may be treated with surgery, chemotherapy, and/or radiation. D) This type of cancer typically takes many years to develop. E) Problems associated with lung cancer include inadequate exchange of gases in the alveoli and impairment of blood flow in the pulmonary blood vessels.
Chemotherapy to inhibit the progression of HIV infection utilizes all of the following mechanisms EXCEPT
A) termination of viral DNA. B) inhibition of viral proteases. C) blockage of viral attachment. D) prohibition of viral integration into host cell DNA. E) destruction of viral ribosomes.