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 Reassortment of RNA segments from different influenza viruses Somatic recombination of heavy and light chains Changing the receptor binding canyon that docks with the host receptor Expression of several different capsule types Reassortment of RNA segments from different influenza viruses Somatic recombination of heavy and light chains Changing the receptor binding canyon that docks with the host receptor ANSWER DOWNLOAD EXAMIANS APP
Viruses From Animal and Plants Which type of interferon is produced by T lymphocytes? β α γ and β γ β α γ and β γ 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
Viruses From Animal and Plants What does the positive strand in double stranded RNA viruses stands for? rRNA mRNA None of these tRNA rRNA mRNA None of these tRNA ANSWER DOWNLOAD EXAMIANS APP
Viruses From Animal and Plants Viropexis takes place in the phagocytic vacuoles and is due to the action of enzymes all of these DNA gyrase lysosomal protease lysosomal lipase all of these DNA gyrase lysosomal protease lysosomal lipase ANSWER DOWNLOAD EXAMIANS APP
Viruses From Animal and Plants Plant viruses penetrate host cells through transient ores called protodesmata endodesmata cytodesmata ectodesmata protodesmata endodesmata cytodesmata ectodesmata ANSWER DOWNLOAD EXAMIANS APP
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