Amongst the following chemical elements that are essential to organisms, which of the following set of elements have an atomic number above that of selenium?

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#Question id: 18896

#Unit 13. Methods in Biology

Negative Staining is used for examining.

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#Question id: 23279

#Unit 13. Methods in Biology

What will be the value of D if sin angle is 90o and oil immersion is used at λ=700?

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#Question id: 23205

#Unit 13. Methods in Biology

Which type of electrons are excited in SEM when intense electron beam is applied over sample?

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#Question id: 23204

#Unit 13. Methods in Biology

Shadow casting is a technique in electron microscopy visualizing 

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#Question id: 23203

#Unit 13. Methods in Biology

The biological materials have little intrinsic capability to ____________________

TLS Online TPP Program

#Question id: 23202

#Unit 13. Methods in Biology

The cathode of transmission electron microscope consists of a ____________________