Viruses From Animal and Plants What is the function of positive strand in double stranded RNA viruses? Production of ribosomes Synthesis of protein Both (a) and (b) None of these Production of ribosomes Synthesis of protein Both (a) and (b) None of these 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? 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 Reassortment of RNA segments from different influenza viruses ANSWER DOWNLOAD EXAMIANS APP
Viruses From Animal and Plants Transfer of infection from cell to cell occurs mainly by direct transfer of virions via protodesmata none of these cytodesmata plasmodesmata protodesmata none of these cytodesmata plasmodesmata ANSWER DOWNLOAD EXAMIANS APP
Viruses From Animal and Plants The nucleocapsid is covered by an outer membrane like structure called membronocapsid envelope covering all of these membronocapsid envelope covering all of these ANSWER DOWNLOAD EXAMIANS APP
Viruses From Animal and Plants Negative strand ssRNA viruses need to have a preformed replicase when they invade a mammalian cell because they have to make a positive strand copy that can be translated use it to terminate transcripts when they copy host cell mRNA None of these use it to modify host enzymes that are recruited for viral replication have to make a positive strand copy that can be translated use it to terminate transcripts when they copy host cell mRNA None of these use it to modify host enzymes that are recruited for viral replication ANSWER DOWNLOAD EXAMIANS APP
Viruses From Animal and Plants Which type of interferon is produced by virus-infected cells? β None of these α Both (a) and (b) β None of these α Both (a) and (b) ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS