Which characteristic of antibodies is responsible for some autoimmune disorders?
a. affinity
b. avidity
c. cross reactivity
d. complement fixation
c. cross reactivity
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When an object with blood on it touches one that does not have blood on it, this produces a(n)
A) contact pattern. B) flow. C) trail pattern. D) void.
Which region of the ? phage genome enables the linear chromosome to circularize when it enters a host cell?
A) cohesive (cos) site B) IS10 C) early operators D) integrase (int) gene E) excisionase (xis) gene
A woman who is color blind, a sex-linked trait, has several children with a man who has normal vision. What are the possible phenotypes of their children with respect to this trait?
What will be an ideal response?
"Live and Active Cultures" on the label of many yogurt products means that
A. the product contains live bacteria. B. the product may become contaminated by microbes if exposed to air. C. the product was made by fermentation but then pasteurized. D. yeast cultures were used to produce the yogurt.