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31.

Nucleoproteins and histones are present in:

A.	Bacteria	B.	Viruses
C.	Both (a) and (b)	D.	None of these

32.

Which of the following statements does not hold good for the viruses:

A.	They are made up of proteins and nucleic acids	B.	They cannot utilize oxygen
C.	They can grow in dilute sugary syrups in warm weather	D.	They can multiply only in living cells

33.

Which of the following sets is a viral disease set:

A.	Tubereulosis, Typhoid, Diptheria	B.	Dysentery, Sleeping sickness, Malaria
C.	Filaria, Pneumonia, Cholera	D.	Mumps, Yellow fever, chickenpox

34.

Which of the following diseases is caused by a virus:

A.	Cholera	B.	Diptheria
C.	Typhoid	D.	Influenza

35.

Abbreviation 'TMV" is used for:

A.	A bacterium infecting man	B.	A protozoan causing disease
C.	A virus causing disease in plant	D.	A disease of animals

36.

A virus which grows inside bacteria is called:

A.	Plasmid	B.	Bacteriophage
C.	TMV	D.	Mycoplasma

37.

Smallpox and chickenpox are:

A.	Protozoan diseases	B.	Viral diseases
C.	Genetical diseases	D.	Bacterial diseases

38.

Viruses are composed of:

A.	Lipoproteins	B.	Nucleic acids only
C.	Proteins only	D.	Nucleic acids and proteins

39.

First virus was discovered by:

A.	Landsteiner	B.	Miller
C.	Ivanowsky	D.	Beijerinck