Icosahedral viruses are generally polio viruses adeno viruses none of these both (a) and (b) TRUE ANSWER : ? YOUR ANSWER : ?
The penetration of animal viruses into attached cells occur by mechanisms consisting of engulfment of whole virions by the cells in a phagocytic process called vivopexis viropexis ectodesmata vitropexis TRUE ANSWER : ? YOUR ANSWER : ?
What is the function of positive strand in double stranded RNA viruses? None of these Both (a) and (b) Synthesis of protein Production of ribosomes TRUE ANSWER : ? YOUR ANSWER : ?
Which of the following virus is transmitted by genital route? All of these Papillomaviruses Herpes simplex virus type 2 Hepatitis B virus TRUE ANSWER : ? YOUR ANSWER : ?
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 use it to modify host enzymes that are recruited for viral replication None of these TRUE ANSWER : ? YOUR ANSWER : ?
Animal viruses with capsids displaying helical symmetry include measles and mumps influenza rabies all of these TRUE ANSWER : ? YOUR ANSWER : ?
The reovirus and influenza virus contain 7 different segments of dsRNA and 5different segments of ssRNA respectively 5 different segments of dsRNA and 7 different segments of ssRNA respectively 10 different segments of dsRNA and 8 different segments of ssRNA respectively 8 different segments of dsRNA and 10 different segments of ssRNA respectively TRUE ANSWER : ? YOUR ANSWER : ?
Viropexis takes place in the phagocytic vacuoles and is due to the action of enzymes lysosomal protease lysosomal lipase DNA gyrase all of these TRUE ANSWER : ? YOUR ANSWER : ?
Mumps vaccine is prepared from the cultures of chick fibroblasts healthy calves sheep African green monkey cells TRUE ANSWER : ? YOUR ANSWER : ?
Which of the following characteristics would not be used to classify viruses? Presence of an envelope Type of cell wall structure Symmetry Type of nucleic acid TRUE ANSWER : ? YOUR ANSWER : ?