Which of the following buffer gives superior separation of smaller fragments (< 2 kb) of miRNA prudentially

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The images imaged by conventional point-scanning confocal microscopy and by SIM, SIM improves resolution about 

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When you try to image two fluorescent spots separated by 75 nm the fluorescence overlap so much that they look like one spot. Which microscopy can resolve this?

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The following are super-resolution techniques:

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Electron microscopy under optimal conditions can provide a resolution of upto 

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What kind of lenses are used to focus a high-velocity electron beam instead of the visible light.

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In order to view images in TEM staining process has to be done. What kind of staining process are done.

1. Negative staining

2. Gram staining

3. Metal shadowing 

4. Immuno staining

Which of the following is true for TEM?