Bioassays can be used to
(a) test new drugs.
(b) determine the effectiveness of new fertilizers and herbicides.
(c) measure the effects their waste discharges have on aquatic organisms.
(d) do all of these choice
(d) do all of these choice
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The immunoglobulin superfamily includes a wide variety of soluble and cell-bound proteins important in the immune response. These proteins can be best described as sharing:
A. a nearly identical primary structure. B. a nearly identical primary structure, and similar structural motifs and function. C. limited to close sequence similarity, and similar structural motifs and function. D. none to limited sequence similarity, and similar structural motifs and function. E. limited to close DNA-coding sequences, and similar structural motifs and function.
Which molecule is a disaccharide?
a. sucrose b. agarose c. glucose d. galactose
In AIDS, the body’s reduced capacity for adaptive
immunity is due directly to the destruction of __________ cells. a. NK b. B c. helper T d. T e. dendritic
Where does the fertilization of the egg occur?
A) Ovary B) Oviduct C) Uterus D) Cervix