Practice Questions

TLS Online TPP Program

#Question id: 9244

One characteristic that distinguishes a population in an extinction vortex from most other populations is that

#Unit 9. Diversity of Life Forms

it is a rare, top-level predator.
its effective population size is lower than its total population size.
its genetic diversity is very low.
it is not well adapted to edge conditions.

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TLS Online TPP Program

#Question id: 18892

#Unit 13. Methods in Biology

The greatest resolution in light microscopy can be obtained with

TLS Online TPP Program

#Question id: 18893

#Unit 13. Methods in Biology

In fluorescence microscopy, which of the following performs the function of removing all light except the blue light?

TLS Online TPP Program

#Question id: 18894

#Unit 13. Methods in Biology

Which of the following is used in electron microscope?

TLS Online TPP Program

#Question id: 18895

#Unit 13. Methods in Biology

Degree of scattering in transmission electron microscope is a function of

TLS Online TPP Program

#Question id: 18896

#Unit 13. Methods in Biology

Negative Staining is used for examining.

TLS Online TPP Program

#Question id: 19448

#Unit 13. Methods in Biology

Which of the following incident lights will give better resolution of a specimen?