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Question

Western blotting is a technique for hybridization of-


A
Antigen-Antibody
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B
DNA- cDNA
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C
Polyamines
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D
Monosaccharides
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Solution

The correct option is C Polyamines
The western blot (sometimes called the protein immunoblot) is a widely used analytical technique used to detect specific proteins in a sample of tissue homogenate or extract. It uses gel electrophoresis to separate native proteins by 3-D structure or denatured proteins by the length of the polypeptide. The proteins are then transferred to a membrane (typically nitrocellulose or PVDF), where they are stained with antibodies specific to the target protein.

Polyamines (PAs) are low molecular weight aliphatic nitrogenous bases containing two or more amino groups.

The gel electrophoresis step is included in western blot analysis to resolve the issue of the cross-reactivity of antibodies.


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