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TLS Online TPP Program

#Question id: 9270

In the lowest excited state, the excited chlorophyll has four alternative pathways for disposing of its available energy which of the statement of alternative pathway would be INCORRECT?

#SCPH05 I Biotechnology
  1. Excited chlorophyll can re-emit a photon and thereby return to its ground state—a process known as fluorescence, When it does so, the wavelength of fluorescence is slightly longer than the wavelength of absorption
  2. The excited chlorophyll can return to its ground state by directly converting its excitation energy into heat, with the emission of a photon
  3. Chlorophyll may participate in energy transfer, during which an excited chlorophyll transfers its energy to another molecule
  4. The photochemistry, in which the energy of the excited state causes chemical reactions to occur, the photochemical reactions of photosynthesis are among the fastest known chemical reactions
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TLS Online TPP Program

#Question id: 3559

#SCPH12 I Genetics

Homozygous yellow was crossed with green seed plant. All F1 offspring having yellow seed plant were allowed to self fertilization to produced F2 plant. Further F2 plant self fertilized. What is phenotype ratio in F3 generation?
TLS Online TPP Program

#Question id: 954

#SCPH28 | Zoology

The degradation of which amino acid requires the coenzyme tetrahydrofolate?
TLS Online TPP Program

#Question id: 4584

#SCPH06 I Botany

When Cuvier considered the fossils found in the vicinity of Paris, he concluded that the extinction of species ________.
TLS Online TPP Program

#Question id: 500

#SCPH05 I Biotechnology

The oxidation of 3 mol of glucose by the pentose phosphate pathway may result in the production of:
TLS Online TPP Program

#Question id: 15871

#SCPH05 I Biotechnology

Various sterilization techniques used in plant tissue culture work;

           Sterilization technique

 

          Materials sterilized

     A) Dry heat

i) Media, culture vessels, other glass plasticwarc, contaminated cultures

 

      B) Autoclaving

ii) Heat labile compounds like GA3, ABA, zeatin, urea,·enzymes, etc.

 

      C) Surface sterilization

iii) Empty glassware, instruments like scalpels, forceps, needles

 

     D) Liquid (membrane filter of 

       0.45 μm or smaller pore size)

iv) All plant materials to be cultured