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TLS Online TPP Program

#Question id: 4352

How does extracellular glucose inhibit transcription of the lac operon?

#Part-A Aptitude & General Biotechnology

  1. by strengthening the binding of the repressor to the operator

  2. by weakening the binding of the repressor to the operator

  3. by inhibiting RNA polymerase from opening the strands of DNA to initiate transcription

  4. by reducing the levels of intracellular cAMP

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TLS Online TPP Program

#Question id: 18870

#Part-A Aptitude & General Biotechnology

Which element of the light microscope is in charge of regulating the amount of light that enters the viewing area?
TLS Online TPP Program

#Question id: 18881

#Part-A Aptitude & General Biotechnology

A compound microscope’s magnification power is independent of 
TLS Online TPP Program

#Question id: 18882

#Part-A Aptitude & General Biotechnology

The resolving power of a microscope is determined by-
TLS Online TPP Program

#Question id: 18883

#Part-A Aptitude & General Biotechnology

Which of the following is defined as the ability to distinguish or separate two adjacent objects or points from one another in a microscopic specimen?
TLS Online TPP Program

#Question id: 18884

#Part-A Aptitude & General Biotechnology

The presence of a capsule around bacterial cells usually indicates their increased disease-causing potential and resistance to disinfection. Capsules are generally viewed by:
TLS Online TPP Program

#Question id: 18885

#Part-A Aptitude & General Biotechnology

The total magnification of a microscope is calculated by: