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TLS Online TPP Program

#Question id: 332

The electronegativity difference between N and F is greater than that between N and H yet the dipole moment of NH3 (1.5 D) is larger than that of NF3 (0.2 D). This is because_________

#Unit 1. Structure and Function of Biomolecules

  1. in NH3 the atomic dipole and bond dipole are in the opposite directions whereas in NF3 these are in the same direction

  2. in NH3 as well as in NF3 the atomic dipole and bond dipole are in the same direction

  3. in NH3 the atomic dipole and bond dipole are in the same direction whereas in NF3 these are in opposite directions

  4. in NH3 as well as NF3 the atomic dipole and bond dipole are in opposite directions

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TLS Online TPP Program

#Question id: 20259

#Unit 13. Advances in Biotechnology

Under stress condition expression of E, coli gene mtl 1D in plants leads to 
1. Mannitol accumulation 
2. Enhanced growth 
3. Reduced growth
4. Glucose accumulation 
Which of the following is correct option?
TLS Online TPP Program

#Question id: 20260

#Unit 13. Advances in Biotechnology

The modified forms of starch have varied applications in food and other industries. Basic strategies to modify starch quality are 
(i) genetic modification of crops (by breeding or biotechnology)
(ii) food processing (using enzymes and chemicals)
(iii) food supplementation (modification of starch by employing microorganisms)
Which of the following strategies are correct?
TLS Online TPP Program

#Question id: 20261

#Unit 13. Advances in Biotechnology

Certain modified forms of starch such as high amylose starch are widely used in 
1. Snack products
2. Improve uniformity, stability and texture
3. Thickener
Which of the following are correct?
TLS Online TPP Program

#Question id: 20262

#Unit 13. Advances in Biotechnology

Certain modified forms of starch such as high amylopectin starch are widely used in 
1. Snack products
2. Improve uniformity, stability and texture
3. Thickener
4. Paper industry
Which of the following is correct option?
TLS Online TPP Program

#Question id: 20263

#Unit 13. Advances in Biotechnology

_______  an excellent alternative to polystyrene-based packing material
TLS Online TPP Program

#Question id: 20264

#Unit 13. Advances in Biotechnology

______________ is the main enzyme of amylose biosynthesis. Whose increased activity is expected to increase the amylose content of starch?