TLS Online TPP Program

#Question id: 10540


The following statements are made regarding volatile compounds of plant;

a) secondary metabolites also fuction in defence mechanism but this is not the volatile compound

b) These volatiles can act as cues for natural enemies of the insect herbivore such as parasitic wasps

c) All plants releases green-leaf volatiles in response to mechanical damage that is a mixture of aldehydes, alcohols, and esters

d) These volatiles attracts natural enemies of the attacking insect herbivores—predators or parasites

Which one of the following options represents a combination of correct statements?

#Section 6: Plant, Animal and Microbial Biotechnology
  1. A, B and C        
  2. A, C and D             
  3. B, C and D    
  4. A, B and D
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TLS Online TPP Program

#Question id: 3613

#Section 3: Genetics, Cellular and Molecular Biology

When a single gene influences more than one trait it is called

TLS Online TPP Program

#Question id: 27590

#Section 5: Bioprocess Engineering and Process Biotechnology

The pressure gauge on an autoclave reads 15 psi. What is the absolute pressure in the chamber in atm? (Assume atmospheric pressure is 14.7 psi and 1 psi=6.8*10-2 atm

TLS Online TPP Program

#Question id: 2063

#Section 3: Genetics, Cellular and Molecular Biology

In what way do the membranes of a eukaryotic cell vary?

TLS Online TPP Program

#Question id: 10794

#Section 6: Plant, Animal and Microbial Biotechnology

Which one of the following characteristics of about lignin is incorrect?

TLS Online TPP Program

#Question id: 13063

#Section 7: Recombinant DNA technology and Other Tools in Biotechnology

Precision will be reduced, but yield will be increased
Optimisation of a PCR reaction is often a compromise between the competing demands for precision, efficiency and yield. Although the specific effects may vary, generally, increasing the annealing temperature will increase non-specific primer binding and reduce precision. Increasing the length of the elongation phase will reduce the proportion of incomplete newly-synthesised strands and therefore increase yield. In this case, the potential effect on efficiency is unclear. Increasing the elongation phase would increase the reaction time, but the time taken to ramp down to a lower annealing temperature would be reduced.
Which of the statement is worng? Aminopetrin………s