How has modern technology helped to produce new types of vaccines?
What will be an ideal response?
Scientists have used a variety of recombinant DNA techniques to produce improved vaccines. They have used these methods to produce large amounts of very pure viral or bacterial antigens. Genetic engineering has been used to alter microbial or viral virulence to produce live recombinant vaccines, such as the rotavirus vaccine. Other methods include injecting into a patient DNA (by way of a plasmid) that codes for the pathogen's antigen rather than injecting the antigen itself. The patient's cells take up the plasmid, then transcribe and translate this DNA to produce antigens, which causes the body to produce a cell-mediated immune response as well as an antibody response.
Bloom's Taxonomy: Comprehension
Section: Immunization
Learning Outcome: 17.3
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In island biogeography, larger islands support ______ species than smaller islands.
A. more B. fewer C. larger D. stranger E. smaller
Which life history patterns in some rotifers are adapted to living in small bodies of water?
What will be an ideal response?
In addition to the circulatory system, the ________ system is also characterized by possessing a series of fluid-filled vessels
Fill in the blank(s) with correct word
During electrophoresis, DNA is
a. separated by its charge. b. separated by its molecular weight. c. compared to a standard ladder. d. all of the above.