TLS Online TPP Program

#Question id: 11531


Auxin bioassays are used to detect____

#I Life Science/ Life Sciences Group – I-V
  1. quantification or identification
  2. the presence of auxin activity in a sample
  3. auxin-induced changes in the straight growth of Avena coleoptiles floating in solution
  4. B and C both
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TLS Online TPP Program

#Question id: 10354

#SCPH05 I Biotechnology

One of the enzyme that are involve in the ammonium assimilation is Asparagine synthetase (AS), some statements given below about AS such as,

a) This enzyme that catalyzes this reaction, is found in the cytosol of leaves and roots and in nitrogen-fixing nodules

b) High levels of light and carbohydrate inhibit the expression of genes coding for AS and the activity of the enzyme

c) Conditions of ample energy stimulate AS, thus they favor nitrogen assimilation into glutamine and glutamate

d) Energy-limited conditions inhibit GS and GOGAT, stimulate AS, and thus favor nitrogen assimilation into asparagine, a compound that is rich in nitrogen and sufficiently stable for long-distance transport or long term storage

Which of the following statements about AS is correct?

TLS Online TPP Program

#Question id: 9176

#SCPH06 I Botany

Wetlands are standing bodies of freshwater, just like lakes and ponds. However, wetlands are different from lakes and ponds because wetlands have ________.

TLS Online TPP Program

#Question id: 19602

#SCPH05 I Biotechnology

If liquids A and B form an ideal solution

TLS Online TPP Program

#Question id: 3688

#SCPH01 Biochemistry

Which of the following enzyme has a unique ability to introduce positive and negative supercoiling of the DNA and it is the target for antibacterial agents such as ciprofloxacin/quinolones?

TLS Online TPP Program

#Question id: 20024

#SCPH06 I Botany

Precipitation reaction are recognise by the formation of
a) Lattice
b) Agglutination
c) Ordered structure of antigen and antidody
d) Antibody must be bivalent