Practice Questions

  1. Home
  2. Free Resources
  3. Practice Questions
  4. 24840
TLS Online TPP Program

#Question id: 15173

Microbes such as Chlorobium and Chromatium develop as visible green and purple zones. These microorganisms use

#Part-B Specialized Branches in Biotechnology
  1. Hydrogen sulfide as an electron source, and CO2 from sodium carbonate as a carbon source
  2. Hydrogen sulfide as an electron source, and O2 from sodium carbonate as a oxygen source
  3. Mercuric chloride as an electron source, and CO2 from sodium carbonate as a carbon source
  4. Citrate as an electron source, and ethanol as a carbon source
More Questions
TLS Online TPP Program

#Question id: 709

#Part-B Specialized Branches in Biotechnology

A sequence of amino acids in a certain protein is found to be -Ser-Gly-Pro-Gly-.  The sequence is most probably part of a(n):
TLS Online TPP Program

#Question id: 12904

#Part-A Aptitude & General Biotechnology

Match the following:
1. Southern Blotting                               i. Melting temperature of DNA strand
2. DNA microchips                                   ii.oligonucleotide matching to DNA sample
3. ASO-PCR                                                 iii.DNA hybridization to oligo arrays
4. DGGE                                                        iv. labeled probe hybridization to DNA  
TLS Online TPP Program

#Question id: 562

#Part-B Specialized Branches in Biotechnology

Phenyl-methane-sulfonyl-fluoride (PMSF) inactivates serine proteases by binding covalently to the catalytic serine residue at the active site; this enzyme-inhibitor bond is not cleaved by the enzyme.  This is an example of what kind of inhibition?
TLS Online TPP Program

#Question id: 3612

#Part-B Specialized Branches in Biotechnology

Multiple alleles control inheritance of
TLS Online TPP Program

#Question id: 7507

#Part-A Aptitude & General Biotechnology

The lengths of trains A and B are 250 m 300 m respectively and their speeds are 70 km/h and 79 km/h respectively. They are walking in the same direction. In how much time will train B cross a passenger sitting in A?