This antibody is linked to an enzyme, and, in the final step, a substance containing the enzyme's substrate is added. The subsequent reaction produces a detectable signal, most commonly a color change in the substrate. Performing an ELISA involves at least one antibody with specificity for a particular antigen. 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.
The University operates a two semester academic year with each semester running for approximately 13 teaching weeks followed by 2 weeks of examination. Semester I usually starts during the last week in August and ends late December. Semester II starts about late January and ends around mid May.
Thus, as a full-time student taking 15 credits (usually five courses), it would take approximately 14 to 16 weeks depending on the schools semester schedule. Typically, the semesters run September through December for the Fall semester, and January through mid May for the Spring semester.+ 25 others found this useful.hus, as a full-time student taking 15 credits (usually five courses), it would take approximately 14 to 16 weeks depending on the schools semester schedule. Typically, the semesters run September through December for the Fall semester, and January through mid May for the Spring semester. + 25 others found this useful.