BT501 Final Term Quiz 2 July 2023 by Miss Mehwish

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Q1. The oligonucleotide ligation assay (OLA) is commonly used to detect ___________ known to be associated with human diseases with a high degree of accuracy.

1. Gene
2. Antigen
3. SNPs
4. Protein

Correct option: c) SNPs

Q2. Which statement about the probe is correct?

1. The 5' end of the probe is labeled with a fluorescent reporter molecule.
2. The 5' end of the probe is labeled with a fluorescent quencher molecule.
3. The 3' end of the probe is labeled with a fluorescent quencher molecule.
4. The 3' end of the probe is labeled with a fluorescent reporter molecule.

Correct option: A) The 5' end of the probe is labeled with a fluorescent reporter molecule. The 5' end of the probe is labeled with a fluorescent reporter molecule.

Q3. Which method for the detection of penaeid shrimp viruses is now used routinely in a number of laboratories around the world?

1. DNA-based detection
2. ELISA-based detection
3. Probe-based detection
4. Protein-based detection

Correct option: a) DNA-based detection

Q4. In susceptible individuals, the first exposure to an allergen elicits the production of high levels of ___________ antibodies that bind to mast cells. Options:

1. IgE
2. IgM
3. IgG
4. IgA

Correct option: a) IgE