TLS Online TPP Program

#Question id: 4361


How do steroid hormones produce their effects in cells?

#Part-B Specialized Branches in Biotechnology
  1. by binding to the regulatory gene in an operon

  2. by activating translation of certain mRNAs

  3. by promoting the degradation of specific mRNAs

  4. by binding to intracellular receptors and promoting transcription of specific genes

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TLS Online TPP Program

#Question id: 19457

#Part-A Aptitude & General Biotechnology

Which microscopy can be used for viewing live cells and unstained tissues?
1. Fluorescence microscopy
2. Phase contrast microscopy
3. Dark field microscopy
4. Differential interference microscopy
5. Confocal microscopy
Which of the above combinations of microscopy is correct?

TLS Online TPP Program

#Question id: 19457

#Part-B Specialized Branches in Biotechnology

Which microscopy can be used for viewing live cells and unstained tissues?
1. Fluorescence microscopy
2. Phase contrast microscopy
3. Dark field microscopy
4. Differential interference microscopy
5. Confocal microscopy
Which of the above combinations of microscopy is correct?

TLS Online TPP Program

#Question id: 19458

#Part-A Aptitude & General Biotechnology

How phase contrast and DIC microscopy are used to image live cells and unstained tissues?

TLS Online TPP Program

#Question id: 19458

#Part-B Specialized Branches in Biotechnology

How phase contrast and DIC microscopy are used to image live cells and unstained tissues?

TLS Online TPP Program

#Question id: 19459

#Part-A Aptitude & General Biotechnology

Phase-contrast microscopy depends on the refractive index of the region of specimen and generates image in which we see a pattern of 

TLS Online TPP Program

#Question id: 19460

#Part-A Aptitude & General Biotechnology

In phase contrast unobstructed light passes through a region of________ that both transmits only a small percentage of the light and changes its phase slightly.