In Performing an Antibody Screen by the Solid Phase Technique

question 19

Multiple Choice

In performing an antibody screen by the solid phase technique, a monolayer of red blood cells is formed at the top of the microplate wells following the addition of indicator cells. This result should be interpreted as:

• A) negative.
• B) mixed-field.
• C) positive.
• D) weak positive.

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Definitions:

Regulatory Elements

DNA sequences that regulate the expression of genes, including promoters, enhancers, and silencers.

Alternative Splicing

A genetic mechanism in which exons are spliced in different ways to produce different mRNAs from a single gene.

Eukaryotic DNA

The genetic material within the nucleus of eukaryotic cells, organized into chromosomes, coding for the cell's structure and function.

Introns

Non-coding sections of DNA within a gene that are removed via RNA splicing during the process of transcription.