Which of the following statements is true of proteins?
a. Proteins lose some or all of their normal activity if their three-dimensional structure is
disrupted.
b. Proteins are composed of ribose, phosphate, and a nitrogen-containing base.
c. The activity of proteins is independent of temperature and pH.
d. Denaturation is usually reversible.
e. All proteins are enzymes.
A
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A. the -carbon B. the carboxyl group C. the side chain D. the amino group E. the hydrogen opposite the R-group
The first level of inquiry in making a systematic
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The most direct way to detect Down Syndrome in a fetus is by ___________. Fill in the blank(s) with the appropriate word(s)
Consider a genetic mutation which causes T helper cells to be unable to respond to stimulation by the cytokines which lead to TH2 differentiation. This mutation would cause a patient to be deficient in which activity?
A) production of memory cells B) action of macrophage C) production of antibodies D) decrease of the immune response once the pathogen is eliminated E) action of cytotoxic T cells