Of all the different types of plants, only _____________ are able to survive in the harsh environmental conditions of Antarctica
A. lycophytes
B. gymnosperms
C. angiosperms
D. bryophytes
E. ferns
D
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The use of transposons to generate mutations is a convenient way to create bacterial mutations in the laboratory
Indicate whether the statement is true or false.
E. coli strains toxic to humans live in the
intestine of ____ without sickening them. I. birds and frogs II. goats and sheep III. cattle and deer
a. I only b. I and II c. II and III d. I and III e. all of these
Most genetic engineering involves the use of ____
a. yeast and plants b. plants and E. coli c. yeast and mice d. bacteria and mice e. yeast and bacteria
Which of the following statements best describes how lateral flow assays demonstrate the presence of bacterial, fungal, and viral antigens?
A. During the assay, bacterial antigens present in a specimen are pretreated by coating them with colloidal gold prior to binding to an antibody. B. A positive test results from the binding of the conjugated antibody and antigen to a fixed antibody directed against the antigen in the capture zone. C. A positive test results from the precipitation of the antigen-antibody complex in the capture zone. D. Migration of labeled antigen to the capture zone produces a positive result.