Explore topic-wise MCQs in Microbiology.

Negative strand ssRNA viruses need to have a preformed replicase when they invade a mammalian cell because they

Animal viruses with capsids displaying helical symmetry include

Icosahedral viruses are generally

Negri bodies are found in cells infected with

Which of the following virus is transmitted by genital route?

The RNA sarcoma viruses, the most strongly transforming viruses may transform which of the following cells in a culture?

The predominant lipid substance found in the viral envelope is

The structural abnormality of cells is termed as

Transfer of infection from cell to cell occurs mainly by direct transfer of virions via

Interanuclear inclusion bodies are found in cells infected with

What is the function of positive strand in double stranded RNA viruses?

Plant viruses penetrate host cells through transient ores called

Which of the following virus is transmitted by the respiratory route?

Supercoiling refers to the extra turns in the structure of ds DNA due to the action of

The transcription of the viral nucleic acid into mRNA is not necessary in case of

The reovirus and influenza virus contain

The microbes which are most likely to be completely dependent on a plant or animal host are

The two major components of viruses are

The penetration of animal viruses into attached cells occur by mechanisms consisting of engulfment of whole virions by the cells in a phagocytic process called

West Nile virus can cause a disease in human beings that may be transmitted from an infected bird to a person by a mosquito. This is an example of

Influenza virus undergoes antigenic shift resulting in major antigenic changes by which of the following mechanisms?

The nucleocapsid is covered by an outer membrane like structure called

Which type of interferon is produced by virus-infected cells?

Fluorescence microscopy can be used for the diagnosis of

Viral matrix proteins are

Which of the following reflects the correct order of events that take place during the multiplication of a virus?

What can be coated to the plastic dish if an ELISA is performed to directly detect polio virus?

What does the positive strand in double stranded RNA viruses stands for?

Which of the following characteristics would not be used to classify viruses?

Intracytoplasmic inclusion bodies are found in cells infected with

Which type of interferon is produced by T lymphocytes?

Viropexis takes place in the phagocytic vacuoles and is due to the action of enzymes

The uncontrolled proliferation of cells is termed as

The tissue structure deteriorates as the virus multiplies. This deterioration is called

Mumps vaccine is prepared from the cultures of