Allergic reactions are triggered by the production of ____ antibodies instead of ____ antibodies at the first exposure to
the allergen.
a. IgA; IgD
b. IgA; IgE
c. IgE; IgM
d. IgE; IgG
e. IgG; IgE
d
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Which of the following drugs has been shown to reduce the duration and symptoms of influenza?
A. Acyclovir B. AZT C. Oseltamivir D. Penicillin
Integrating Center
Match the letter of each example from childbirth to the appropriate component of a positive feedback loop. A. pituitary gland secretes oxytocin, which acts on the uterus B. uterine contractions increase C. fetus is pushed against uterine opening D. receptors detect stretch E. brain receives and compares stretch information Clarify Question What is the key concept addressed by the question? What type of thinking is required? Gather Content What do you already know about positive feedback? What other information is related to the question? Choose Answer Given what you now know, what information is most likely to produce the correct answer? Reflect on Process Did your problem-solving process lead you to the correct answer? If not, where did the process break down or lead you astray? How can you revise your approach to produce a more desirable result?
Alzheimer disease has been shown to be related to_______
a. alcoholic fermentation in the brain d. decreased brain metabolism b. lactate fermentation in the brain e. increased mitochondrial enzyme activity c. increased brain metabolism
DNA sequencing
1.uses dideoxynucleoside triphosphates. 2.uses fluorescent dyes. 3.determines the base sequence of pieces of DNA. 4.is an important tool in genomics. 5.All of the options are correct.