While Performing an ELISA, a Lab Technician Fails to Rinse

question 10

Multiple Choice

While performing an ELISA, a lab technician fails to rinse away unbound detection antibody from the wells before adding the substrate for the reporter enzyme. What is the likely outcome of this error?

• A) All wells, including controls, will indicate a negative result.
• B) All wells, including controls, will indicate a positive result.
• C) The test results will not be affected.
• D) The control wells will indicate a negative result, but the wells with the test sample will indicate a positive result.
• E) The outcome cannot be determined from this information.

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Definitions:

Deferred Annuity

An annuity contract that delays payments of income, installments or a lump sum until the investor elects to receive them.

Ordinary Annuity

Unchanging installments paid at the finale of successive terms over a fixed duration.

Deferred Annuity

An annuity contract that delays payments until the investor elects to receive them, usually at retirement.

Ordinary Annuity

Periodic equal distributions made at the terminus of each phase throughout a determined period.