TLS Online TPP Program

#Question id: 19053


The principle on which thin layer chromatography is based is that the ____________

#Part-A Aptitude & General Biotechnology
  1. Different compounds are absorbed on an absorbent to different degrees
  2. Different compounds are absorbed on an absorbent to same degrees
  3. Different compounds are adsorbed on an adsorbent to different degree
  4. Different compounds are absorbed on an absorbent to same degrees
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TLS Online TPP Program

#Question id: 11277

#Part-A Aptitude & General Biotechnology

If a species is a keystone predator, then its removal from a community should

(A) Increase population size of the predator’s preferred prey

(B) decrease species diversity in the prey community

(C) decrease productivity of the predator’s preferred prey

(D) increase species diversity in the prey community

TLS Online TPP Program

#Question id: 11278

#Part-B Specialized Branches in Biotechnology

Which of the following is true with respect to oligotrophic lakes and eutrophic lakes?

A) Oligotrophic lakes are less subject to oxygen depletion.

B) Rates of photosynthesis are lower in eutrophic lakes.

C) Eutrophic lake water contains higher concentrations of nutrients.

D)Sediments in oligotrophic lakes contain larger amounts of decomposable organic matter.

TLS Online TPP Program

#Question id: 11278

#Part-B Specialized Branches in Biotechnology

Which of the following is true with respect to oligotrophic lakes and eutrophic lakes?

A) Oligotrophic lakes are less subject to oxygen depletion.

B) Rates of photosynthesis are lower in eutrophic lakes.

C) Eutrophic lake water contains higher concentrations of nutrients.

D)Sediments in oligotrophic lakes contain larger amounts of decomposable organic matter.

TLS Online TPP Program

#Question id: 11279

#Part-B Specialized Branches in Biotechnology

Ecosystem A: Actual link 10, number of species 15  

Ecosystem B: Actual link 10, number of species 20   

Connectance of ecosystem A and B

TLS Online TPP Program

#Question id: 11279

#Part-B Specialized Branches in Biotechnology

Ecosystem A: Actual link 10, number of species 15  

Ecosystem B: Actual link 10, number of species 20   

Connectance of ecosystem A and B

TLS Online TPP Program

#Question id: 11280

#Part-B Specialized Branches in Biotechnology

Ecosystem services include processes that increase the quality of the abiotic environment. Which of the following processes would fall under this category?