In which phase of the eukaryotic cell cycle is the DNA in its most highly condensed form.

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#Question id: 23147

#Zoology

In fluorescence microscopy why the fluorescence occurs at longer wavelength when there shorter   wavelength of light is applied?

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#Question id: 23148

#Zoology

There are two proteins A and B to be visualized under fluorescence microscopy. Both of them are excited with same wavelength of light but A emits longer wavelength. Hence we can conclude that 

1. A is denser molecule than B

2. B is denser molecule than A

3. A is lighter molecule than B

4. B is lighter molecule than A

Which of the following option is incorrect?

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#Question id: 23156

#Zoology

Most widely used method of detecting specific proteins, uses an antibody to which a fluorescent dye has been covalently attached

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#Question id: 23157

#Zoology

Immunofluorescence microscopy, the most widely used method of detecting 

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#Question id: 23158

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You have purified protein X and injected into an animal so that over a period of weeks, the animal will mount an immune response and make antibodies to protein X. By which technique these generated antibodies can be extracted from blood serum.

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#Question id: 23168

#Zoology

What are the advantages of using secondary antibodies in indirect immunofluorescence?

1.  It makes easy to choose a different conjugate no matter the primary antibody

2. Enhance detection by localizing more conjugate at the antigen

3. Conjugation of fluorophore can interfere with the primary antibody’s recognition of the antigen

Which of the following options is correct?