a.
To describe:
The type of ELISA that can be used to determine an individual’s past exposure to the pathogen.
Concept introduction:
ELISA is the acronym for “Enzyme-Linked Immunosorbent Assay”. It is a test that involves the use of an antibody which is an enzyme-linked indicator that observes antibody-antigen interactions. It involves the usage of a plastic microtiter plate, which provides a surface for the antibodies and antigens to bind or form a complex. Enzyme substrate labeling helps in the final detection of the target molecule (antigen/antibody).
b.
To describe:
Whether immunochromatographic assays are indirect or direct methods of testing.
Concept introduction:
Immunochromatographic tests are done to confirm the presence of antibodies in a sample, which are specific to an antigen released by a pathogen. In this test, an antigen is placed on a cartridge and the serum sample is placed on the tip of its filter paper. When the serum sample moves on the filter paper, it meets the antigen and produces a color, which shows that the result is positive.
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Chapter 17 Solutions
MICROBIOLOGY W/ACCESS
- What is the opening indicated by the pointer? (leaf x.s.) stomate guard cell lenticel intercellular space none of thesearrow_forwardIdentify the indicated tissue? (stem x.s.) parenchyma collenchyma sclerenchyma ○ xylem ○ phloem none of thesearrow_forwardWhere did this structure originate from? (Salix branch root) epidermis cortex endodermis pericycle vascular cylinderarrow_forward
- Identify the indicated tissue. (Tilia stem x.s.) parenchyma collenchyma sclerenchyma xylem phloem none of thesearrow_forwardIdentify the indicated structure. (Cucurbita stem l.s.) pit lenticel stomate tendril none of thesearrow_forwardIdentify the specific cell? (Zebrina leaf peel) vessel element sieve element companion cell tracheid guard cell subsidiary cell none of thesearrow_forward
- What type of cells flank the opening on either side? (leaf x.s.) vessel elements sieve elements companion cells tracheids guard cells none of thesearrow_forwardWhat specific cell is indicated. (Cucurbita stem I.s.) vessel element sieve element O companion cell tracheid guard cell none of thesearrow_forwardWhat specific cell is indicated? (Aristolochia stem x.s.) vessel element sieve element ○ companion cell O O O O O tracheid O guard cell none of thesearrow_forward
- Identify the tissue. parenchyma collenchyma sclerenchyma ○ xylem O phloem O none of thesearrow_forwardPlease answer q3arrow_forwardRespond to the following in a minimum of 175 words: How might CRISPR-Cas 9 be used in research or, eventually, therapeutically in patients? What are some potential ethical issues associated with using this technology? Do the advantages of using this technology outweigh the disadvantages (or vice versa)? Explain your position.arrow_forward
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