410.9 if unspecified, I10 if primary
If there is an option for Vitamin B12 then that will be your answer.
Answer: For detection and confirmation of HIV antibodies in blood samples.
Explanation: As the name implies ELISA( Enzyme-linked immunosorbent assay) is the first test widely used for determining the presence of HIV in a person's serum because of its high sensitivity. In an ELISA, a person's serum is diluted 400 times and applied to a plate to which HIV antigens are attached. If antibodies to HIV are present in the serum, they may bind to these HIV antigens. The plate is then washed to remove all other components of the serum. A specially prepared "secondary antibody" (an antibody that binds to other antibodies) is then applied to the plate, followed by another wash. This secondary antibody is chemically linked in advance to an enzyme.
Thus, the plate will contain enzyme in proportion to the amount of secondary antibody bound to the plate. A substrate for the enzyme is applied, and catalysis by the enzyme leads to a change in color or fluorescence. ELISA results are reported as a number; the most controversial aspect of this test is determining the "cut-off" point between a positive and a negative result. A cut-off point may be determined by comparing it with a known standard. Unknown samples that generate a stronger signal than the known or control sample or are called "positive" while those that generate weaker signal are "negative".
The correct answer is C; Zero tolerance.
Further Explanation:
Schools now have a zero tolerance policy that refuses to have exceptions for anyone for any reason. There have been kindergarten students who made gestures with their hands mimicking a gun and were expelled from school.
Studies have shown that the zero tolerance policy has helped to reduce incidents in schools all over the United States. This helps to keep the other children disciplined and better behaved.
Schools may implement several disciplinary actions against students who break the zero tolerance policy such as;
- expulsion for entire school year
- removed from the school district
- expelled for up to 6 weeks
Learn more about zero tolerance at brainly.com/question/1094860
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Marissa would most likely demonstrate the best sportsmanship.
