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TLS Online TPP Program

#Question id: 12344

The concept of punctuated equilibrium refers to

#Unit 10. Ecological Principles
  1. Oscillating ecological successional stages
  2. Ecological succession arrested by sudden environmental changes, e.g., fire
  3. Persistent predator-prey relationships in relatively stable environments
  4. Bursts of speciation followed by relatively unchanging lineages
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TLS Online TPP Program

#Question id: 23143

#Unit 13. Methods in Biology

Which of the following parameters will give the best resolution in microscopy?
TLS Online TPP Program

#Question id: 23142

#Unit 13. Methods in Biology

What is the value of numerical aperture of microscope if glycerol is used and sin α= 70o?
TLS Online TPP Program

#Question id: 23140

#Unit 13. Methods in Biology

What will be the resolution of a compound microscope where numerical aperture given is 1.5 at 240 wavelength of light?
TLS Online TPP Program

#Question id: 19466

#Unit 13. Methods in Biology

Hematoxylin is a basic dye which which basically bind to which amino acids?
TLS Online TPP Program

#Question id: 19465

#Unit 13. Methods in Biology

In microscopy histological samples are often stained with which basic dye
TLS Online TPP Program

#Question id: 19464

#Unit 13. Methods in Biology

Which is the common fixative agent that crosslinks amino groups on adjacent molecules