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Actinomycetes & Non Sporing Anaero.
Algae
Antibody
Antigen Antibody Reaction
Antimicrobial Chemotherapeutic Agent
Bacillus
Bacteria
Bacteria Morphology
Bacteriophages
Brucella
Cell Cultivations
Cell Cultures and Characteristics
Clostridium
DNA Replication
DNA Sequencing, Mutation and Repair
Energy Release and Conservation
Enzyme Reaction
Enzymes Regulation
Fish and Sea Foods
Food Illness
Fruits and Vegetables
Fungi - Molds and Yeasts
Growth and Nutrition of Bacteria
Heated Canned Foods
Hepatitis Viruses
Identification of Bacteria
Immune Response
Immune System
Industrially Useful Microbial Processes
Micro Organisms
Microbes in Aquatic Environment
Microbial Genetics
Microbial Metabolism
Microbial Recomb. & Gene Transfer
Microbiology of Foods
Microbiology of Soils
Microbiology of Waste Water
Microorganisms and Disease
Milk and Milk Products
Miscellaneous Foods
Mycobacterium
Nucleic Acid Structure
Physical and Chemical Agents
Polymerase Chain Reaction
Poultry, Egg and Meat
Poxviridae and Picronaviridae
Protozon
Pseudomonas and Burkholderia
Retroviridae
Rhabdoviridae, Caliciviridae & Astrovi.
Sauerkraut and Pickles
Spirochacter and Enterobacteriaceac
Staplylococcus
Streptococcus
Transcription
Translation and Regulation
Vibrio, Aeromonas and Plesiomonas
Viruses From Animal and Plants
Viruses in Eukaryotes
Wine and Beer
Home⇒ Medical Science⇒ Microbiology⇒ Viruses
1-Dont try to cram or spend more time here just read it fast and cover syllabus then practice MCQ's cheptor of same topic to check your progress. . |
2-Wrong options are also given but dont concentrate there, Right answer is in bold format. |
Q1 ⇒ Animal viruses with capsids displaying helical symmetry include all of these [other wrong options] [Discuss in forum] ![]() ![]() measles and mumps influenza rabies |
Q2 ⇒ Viral matrix proteins are anchor the envelope of enveloped viruses [other wrong options] [Discuss in forum] ![]() ![]() exposed on the surface of the virus found mainly on naked viruses part of the nucleoprotein core of viruses |
Q3 ⇒ Interanuclear inclusion bodies are found in cells infected with all of these [other wrong options] [Discuss in forum] ![]() ![]() Parvoviruses Herpesviruses Adenoviruses |
Q4 ⇒ The tissue structure deteriorates as the virus multiplies. This deterioration is called cytopathic effect [other wrong options] [Discuss in forum] ![]() ![]() aneuploidy protopathic effect none of these |
Q5 ⇒ Influenza virus undergoes antigenic shift resulting in major antigenic changes by which of the following mechanisms? Reassortment of RNA segments from different influenza viruses [other wrong options] [Discuss in forum] ![]() ![]() Somatic recombination of heavy and light chains Expression of several different capsule types Changing the receptor binding canyon that docks with the host receptor |
Q6 ⇒ The transcription of the viral nucleic acid into mRNA is not necessary in case of RNA viruses [other wrong options] [Discuss in forum] ![]() ![]() ds DNA viruses ss DNA viruses all of these |
Q7 ⇒ What is the function of positive strand in double stranded RNA viruses? Synthesis of protein [other wrong options] [Discuss in forum] ![]() ![]() Production of ribosomes Both (a) and (b) None of these |
Q8 ⇒ The uncontrolled proliferation of cells is termed as hyperplasia [other wrong options] [Discuss in forum] ![]() ![]() anaplasia metastasis all of these |
Q9 ⇒ Which of the following reflects the correct order of events that take place during the multiplication of a virus? Attachment, penetration, biosynthesis, maturation, release [other wrong options] [Discuss in forum] ![]() ![]() Attachment, penetration, maturation, biosynthesis, release Penetration, attachment, biosynthesis, maturation, release Attachment, release, biosynthesis, maturation, penetration |
Q10 ⇒ Transfer of infection from cell to cell occurs mainly by direct transfer of virions via plasmodesmata [other wrong options] [Discuss in forum] ![]() ![]() cytodesmata protodesmata none of these |
Q11 ⇒ Viropexis takes place in the phagocytic vacuoles and is due to the action of enzymes lysosomal protease [other wrong options] [Discuss in forum] ![]() ![]() DNA gyrase lysosomal lipase all of these |
Q12 ⇒ Which type of interferon is produced by virus-infected cells? Both (a) and (b) [other wrong options] [Discuss in forum] ![]() ![]() α β None of these |
Q13 ⇒ What does the positive strand in double stranded RNA viruses stands for? mRNA [other wrong options] [Discuss in forum] ![]() ![]() rRNA tRNA None of these |
Q14 ⇒ The predominant lipid substance found in the viral envelope is phospholipids [other wrong options] [Discuss in forum] ![]() ![]() glycolipids neutral fat all of these |
Q15 ⇒ The RNA sarcoma viruses, the most strongly transforming viruses may transform which of the following cells in a culture? all of these [other wrong options] [Discuss in forum] ![]() ![]() fibroblasts myoblasts iris epithelial |
Q16 ⇒ 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 [other wrong options] [Discuss in forum] ![]() ![]() 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 the above |
Q17 ⇒ The microbes which are most likely to be completely dependent on a plant or animal host are viruses [other wrong options] [Discuss in forum] ![]() ![]() bacteria fungi algae |
Q18 ⇒ The two major components of viruses are nucleic acid and protein [other wrong options] [Discuss in forum] ![]() ![]() fat and protein carbohydrate and nucleic acid fat and carbohydrate |
Q19 ⇒ Which type of interferon is produced by T lymphocytes? γ [other wrong options] [Discuss in forum] ![]() ![]() α β γ and β |
Q20 ⇒ 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 viropexis [other wrong options] [Discuss in forum] ![]() ![]() vitropexis ectodesmata vivopexis |
Or |