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TLS Online TPP Program

#Question id: 18732

Mechanism of ligation for both T4 DNA ligase and E. coli DNA ligase makes use of Adenosine Monophosphate (AMP). Which of the steps is involved in the ligation mechanism?

#Part-A Aptitude & General Biotechnology
  1. AMP is added to the 5’ phosphate of one of the DNA molecules
  2. It leads to the liberation of pyrophosphate from NAD and nicotinamide mononucleotide from ATP
  3. The AMP is further displaced by an electrophilic attack
  4. The AMP is further displaced by nucleophilic attack by 3’ hydroxyl of the same DNA molecule
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TLS Online TPP Program

#Question id: 10180

#Part-B Specialized Branches in Biotechnology

The non uniformly distribution of chloroplast, light is only  absorbed by the chlorophyll molecules in the cholorplast rest of the light penetrates to the cell known as
TLS Online TPP Program

#Question id: 15177

#Part-B Specialized Branches in Biotechnology

Several mechanisms in alkalophiles for the maintenance of a neutral cytoplasmic pH have been proposed. The plasma membrane may be
TLS Online TPP Program

#Question id: 947

#Part-A Aptitude & General Biotechnology

 Which is not part of the synthesis reactions for histidine?
TLS Online TPP Program

#Question id: 10598

#Part-B Specialized Branches in Biotechnology

In a wild life reserve, we have two species of mammal. Species A reproduce thrice a year and produced 6-10 offspring per litter. Species B reproduce once in 2-3 year and produced 1-2 offspring during each cycle of reproduction. Which of the following statement is true?
TLS Online TPP Program

#Question id: 5689

#Part-B Specialized Branches in Biotechnology

What kind of aneuploidy gamete will be generated if meiotic nondisjuction in second division (n represent haploid number of chromosome )