Practicals - Pre-lab assignment

39 important questions on Practicals - Pre-lab assignment

Bradford can measure the number of epitopes in the mixture. T/F

False

Bradford can measure the total amount of protein in the product. T/F

False

Bradford can measure the soluble protein content in the mixture. T/F

True
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Bradford is quantitative. T/F

True

Coomassie Brilliant Blue binds to the epitopes of proteins, therefore you can detect different epitopes. T/F

False, it binds to proteins

Why is it a problem that DNA is heat labile in PCR tests?

It leads to false negatives

Presence or absence of a postive PCR outcome is not directly related to the presence of the antigen. T/F

True

PCR method is easy to perform at home. T/F

False

As outcome of the PCR method, you know if a specific sequence of DNA is present. T/F

True

In SDS-PAGE conformational epitopes are lost. T/F

True

SDS-PAGE is qualitative. T/F

True

SDS-PAGE gives an indication of the protein composition. T/F

True

Western blotting can detect linear epitopes. T/F

True

Dot blot detection is faster because no SDS-PAGE procedure is necessary. T/F

True

Dot blot detection is more specific than Western blotting. T/F

False, less specific because SDS-PAGE is not used.

Conformational epitopes are also considered in the dot blot, while they disappear during the procedure for western blotting. T/F

True

Dot blotting does not provide information regarding the size of your protein. T/F

True

If you have an antibody with only one epitope, the non-competitive sandwich assay is not possible. T/F

True

The antigen of interest competes with a known amount of enzyme-labelled antigen to bind to the antibody. Which ELISA?

Direct competitive assay

T-cell testing is a quantitative method. T/F

True

The outcome of mass spectrometry can indicate which protein was present. T/F

True

Bradford uses antibodies. T/F

False

PCR uses antibodies. T/F

False

SDS-PAGE uses antibodies. T/F

False

ELISA uses antibodies. T/F

True

T cell test uses antibodies. T/F

False

PCR gives a colour as result. T/F

True

SDS-PAGE gives a colour as result. T/F

False, Coomassie blue is needed

Dot blot gives a colour as result. T/F

True

Dip stick gives a colour as result. T/F

True

Mass spectrometry gives a colour as result. T/F

False

PCR can detect conformational epitopes. T/F

False

Western blot can detect conformational epitopes. T/F

False

Dip stick can detect conformational epitopes. T/F

True

Mass spectrometry can detect conformational epitopes. T/F

False

Bradford is quantitative. T/F

True

ELISA is quantitative. T/F

True

Dip stick is quantitative. T/F

False, it is qualitative

T cell test is quantitative. T/F

True

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