Viruses From Animal and Plants Influenza virus undergoes antigenic shift resulting in major antigenic changes by which of the following mechanisms? Somatic recombination of heavy and light chains Changing the receptor binding canyon that docks with the host receptor Reassortment of RNA segments from different influenza viruses Expression of several different capsule types Somatic recombination of heavy and light chains Changing the receptor binding canyon that docks with the host receptor Reassortment of RNA segments from different influenza viruses Expression of several different capsule types 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 fibroblasts all of these myoblasts iris epithelial fibroblasts all of these myoblasts ANSWER DOWNLOAD EXAMIANS APP
Viruses From Animal and Plants Which of the following virus is transmitted by genital route? Papillomaviruses Hepatitis B virus All of these Herpes simplex virus type 2 Papillomaviruses Hepatitis B virus All of these Herpes simplex virus type 2 ANSWER DOWNLOAD EXAMIANS APP
Viruses From Animal and Plants Mumps vaccine is prepared from the cultures of African green monkey cells healthy calves sheep chick fibroblasts African green monkey cells healthy calves sheep chick fibroblasts 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 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 have to make a positive strand copy that can be translated use it to terminate transcripts when they copy host cell mRNA ANSWER DOWNLOAD EXAMIANS APP
Viruses From Animal and Plants Plant viruses penetrate host cells through transient ores called protodesmata cytodesmata endodesmata ectodesmata protodesmata cytodesmata endodesmata ectodesmata ANSWER DOWNLOAD EXAMIANS APP
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