Plant viruses penetrate host cells through transient ores called cytodesmata protodesmata endodesmata ectodesmata TRUE ANSWER : ? YOUR ANSWER : ?
Mumps vaccine is prepared from the cultures of healthy calves chick fibroblasts African green monkey cells sheep TRUE ANSWER : ? YOUR ANSWER : ?
Icosahedral viruses are generally polio viruses both (a) and (b) none of these adeno viruses TRUE ANSWER : ? YOUR ANSWER : ?
Which of the following virus is transmitted by the respiratory route? Measles virus All of these Coronavirus Rhinovirus TRUE ANSWER : ? YOUR ANSWER : ?
Influenza virus undergoes antigenic shift resulting in major antigenic changes by which of the following mechanisms? Expression of several different capsule types Changing the receptor binding canyon that docks with the host receptor Somatic recombination of heavy and light chains Reassortment of RNA segments from different influenza viruses TRUE ANSWER : ? YOUR ANSWER : ?
Viral matrix proteins are found mainly on naked viruses anchor the envelope of enveloped viruses part of the nucleoprotein core of viruses exposed on the surface of the virus TRUE ANSWER : ? YOUR ANSWER : ?
Interanuclear inclusion bodies are found in cells infected with Parvoviruses Adenoviruses all of these Herpesviruses TRUE ANSWER : ? YOUR ANSWER : ?
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 nosocomial infection fomite borne disease endogenous infection arthropod borne disease TRUE ANSWER : ? YOUR ANSWER : ?
The uncontrolled proliferation of cells is termed as anaplasia all of these metastasis hyperplasia TRUE ANSWER : ? YOUR ANSWER : ?
The nucleocapsid is covered by an outer membrane like structure called membronocapsid all of these envelope covering TRUE ANSWER : ? YOUR ANSWER : ?