Supercoiling refers to the extra turns in the structure of ds DNA due to the action of RNA gyrase DNA pyrase DNA gyrase RNA pyrase TRUE ANSWER : ? YOUR ANSWER : ?
West Nile virus can cause a disease in human beings that may be transmitted from an infected bird to a person by a mosquito. This is an example of arthropod borne disease nosocomial infection fomite borne disease endogenous infection TRUE ANSWER : ? YOUR ANSWER : ?
What does the positive strand in double stranded RNA viruses stands for? rRNA mRNA None of these tRNA TRUE ANSWER : ? YOUR ANSWER : ?
The transcription of the viral nucleic acid into mRNA is not necessary in case of all of these RNA viruses ds DNA viruses ss DNA viruses TRUE ANSWER : ? YOUR ANSWER : ?
Icosahedral viruses are generally polio viruses adeno viruses both (a) and (b) none of these TRUE ANSWER : ? YOUR ANSWER : ?
The two major components of viruses are fat and protein nucleic acid and protein carbohydrate and nucleic acid fat and carbohydrate TRUE ANSWER : ? YOUR ANSWER : ?
The uncontrolled proliferation of cells is termed as metastasis all of these anaplasia hyperplasia TRUE ANSWER : ? YOUR ANSWER : ?
Which of the following characteristics would not be used to classify viruses? Type of cell wall structure Symmetry Presence of an envelope Type of nucleic acid 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 None of these use it to modify host enzymes that are recruited for viral replication use it to terminate transcripts when they copy host cell mRNA TRUE ANSWER : ? YOUR ANSWER : ?
The microbes which are most likely to be completely dependent on a plant or animal host are viruses fungi algae bacteria TRUE ANSWER : ? YOUR ANSWER : ?