VIRUSES FROM ANIMAL AND PLANTS QUIZ

Mumps vaccine is prepared from the cultures of

healthy calves

sheep

chick fibroblasts

African green monkey cells

TRUE ANSWER : ?
YOUR ANSWER : ?

The structural abnormality of cells is termed as

hyperplasia

anaplasia

all of these

metastasis

TRUE ANSWER : ?
YOUR ANSWER : ?

Which of the following characteristics would not be used to classify viruses?

Type of nucleic acid

Type of cell wall structure

Symmetry

Presence of an envelope

TRUE ANSWER : ?
YOUR ANSWER : ?

Animal viruses with capsids displaying helical symmetry include

all of these

influenza

rabies

measles and mumps

TRUE ANSWER : ?
YOUR ANSWER : ?

Which of the following virus is transmitted by the respiratory route?

Rhinovirus

All of these

Measles virus

Coronavirus

TRUE ANSWER : ?
YOUR ANSWER : ?

The microbes which are most likely to be completely dependent on a plant or animal host are

fungi

algae

bacteria

viruses

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

vitropexis

viropexis

vivopexis

ectodesmata

TRUE ANSWER : ?
YOUR ANSWER : ?

The transcription of the viral nucleic acid into mRNA is not necessary in case of

all of these

ds DNA viruses

ss DNA viruses

RNA viruses

TRUE ANSWER : ?
YOUR ANSWER : ?

Negative strand ssRNA viruses need to have a preformed replicase when they invade a mammalian cell because they

use it to terminate transcripts when they copy host cell mRNA

have to make a positive strand copy that can be translated

None of these

use it to modify host enzymes that are recruited for viral replication

TRUE ANSWER : ?
YOUR ANSWER : ?

What is the function of positive strand in double stranded RNA viruses?

Production of ribosomes

Synthesis of protein

None of these

Both (a) and (b)

TRUE ANSWER : ?
YOUR ANSWER : ?