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#Question id: 23141


Resolution of a light microscope is 0.42nm at 300 wavelength of light. If the specimen is viewed under oil what is the refractive index?

#Zoology
  1. 1.2
  2. 1.3
  3. 1.4
  4. 1.5

Answer:- Option(s): 4


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#Question id: 39451

#Biochemistry

Which disease-causing organism was identified by Robert Koch?

TLS Online TPP Program

#Question id: 39452

#Biochemistry

Attenuated vaccines were first experimentally developed by:

TLS Online TPP Program

#Question id: 39453

#Biochemistry

Which of the following discoveries is associated with Louis Pasteur?

TLS Online TPP Program

#Question id: 39454

#Biochemistry

Which of the following statements are correct?

I. Edward Jenner used cowpox virus to confer immunity against smallpox
II. Louis Pasteur developed vaccines against rabies and anthrax
III. Robert Koch discovered the cholera toxin

TLS Online TPP Program

#Question id: 39455

#Biochemistry

Regarding Koch’s postulates:

I. The microorganism must be present in every case of the disease
II. The microorganism must be cultured in pure form
III. The microorganism must cause disease when introduced into a healthy host

TLS Online TPP Program

#Question id: 39456

#Biochemistry

 Assertion (A): Louis Pasteur supported the germ theory of disease.

Reason (R): He demonstrated that microorganisms cause fermentation and spoilage.

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