Viruses From Animal and Plants Transfer of infection from cell to cell occurs mainly by direct transfer of virions via none of these plasmodesmata protodesmata cytodesmata none of these plasmodesmata protodesmata cytodesmata ANSWER DOWNLOAD EXAMIANS APP
Viruses From Animal and Plants The RNA sarcoma viruses, the most strongly transforming viruses may transform which of the following cells in a culture? iris epithelial all of these myoblasts fibroblasts iris epithelial all of these myoblasts fibroblasts ANSWER DOWNLOAD EXAMIANS APP
Viruses From Animal and Plants Supercoiling refers to the extra turns in the structure of ds DNA due to the action of DNA gyrase RNA pyrase RNA gyrase DNA pyrase DNA gyrase RNA pyrase RNA gyrase DNA pyrase ANSWER DOWNLOAD EXAMIANS APP
Viruses From Animal and Plants Influenza virus undergoes antigenic shift resulting in major antigenic changes by which of the following mechanisms? Reassortment of RNA segments from different influenza viruses 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 Expression of several different capsule types Changing the receptor binding canyon that docks with the host receptor Somatic recombination of heavy and light chains ANSWER DOWNLOAD EXAMIANS APP
Viruses From Animal and Plants The tissue structure deteriorates as the virus multiplies. This deterioration is called aneuploidy protopathic effect cytopathic effect none of these aneuploidy protopathic effect cytopathic effect none of these ANSWER DOWNLOAD EXAMIANS APP
Viruses From Animal and Plants Which of the following characteristics would not be used to classify viruses? Type of cell wall structure Presence of an envelope Type of nucleic acid Symmetry Type of cell wall structure Presence of an envelope Type of nucleic acid Symmetry ANSWER DOWNLOAD EXAMIANS APP