TLS Online TPP Program

#Question id: 11846


In maize  orange pericarp (orp) mutant is

#Unit 6. System Physiology – Plant
  1. Tryptophan prototroph
  2. Tryptophan auxotroph
  3. Requiring exogenous tryptophan to survive
  4. B and C both
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TLS Online TPP Program

#Question id: 5837

#Unit 8. Inheritance Biology

Which of the following lead(s) to a point mutation?  

TLS Online TPP Program

#Question id: 2533

#Unit 2. Cellular Organization

Cellulose microfibrils have an ordered structure and are synthesized at the plasma membrane, given characteristics of microfibrils;

a) Each microfibril is composed of an estimated 18 parallel chains of (1,4)-linked β-D-glucose chains tightly bonded to each other to form a crystalline microfibril

b) Microfibrils have hydrophilic surfaces, populated by polar –OH groups extending from theplane of the sugar rings

c) Microfibrils have hydrophobic surfaces, populated by nonpolar C–H groups populating thesides of stacked glucose chains

 d) microfibril important for enzymatic attack by microbial cellulases, which dock onto the hydrophobic surface and remove one glucan chain at a time

Which of the following from given characterstics of microfibrils is incorrect?

TLS Online TPP Program

#Question id: 3516

#Unit 8. Inheritance Biology

Cross allowed between pure line tall plant with pure line dwarf plant , all F1 having tall phenotype were allowed to self to produced  200 plant The number of F2 plant having pure line tall phenotype?

TLS Online TPP Program

#Question id: 940

#Unit 1. Molecules and their Interaction Relevant to Biology

Transamination reactions require which coenzyme?

TLS Online TPP Program

#Question id: 584

#Unit 1. Molecules and their Interaction Relevant to Biology

The non-enzymatic hydrolysis of sucrose into glucose and fructose is an example of a pseudo first-order reaction because