Practice Questions

  1. Home
  2. Free Resources
  3. Practice Questions
  4. 22711
TLS Online TPP Program

#Question id: 4128

Which of the following statements about tRNA molecules is false?

#Part-A Aptitude & General Biotechnology

  1. A, C, G, and U are the only bases present in the molecule.

  2. Although composed of a single strand of RNA, each molecule contains several short, double-helical regions.

  3. Any given tRNA will accept only one specific amino acid.

  4. The amino acid attachment is always to an A nucleotide at the 3' end of the molecule.

More Questions
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.