0
Q:

Viruses, outside their host cells, survive as ____________

A) bacteria B) virions
C) algae D) protozoa
 
Answer & Explanation Answer: B) virions

Explanation: The viruses outside their host cells survive as virus particles, which is also known as virions. The virion contains the viral genome and is a gene delivery system.

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Category: Biotech Engineering MCQs
Sub Category: Virology Mcqs

315
Q:

Which of the following viruses are icosahedrons?

A) Filamentous virus B) Complex virus
C) Simple virus D) Isometric virus
 
Answer & Explanation Answer: D) Isometric virus

Explanation: Isometric viruses are the viruses that are approximately spherical but are icosahedrons or icosadeltahedrons. Filamentous viruses have simple and helical morphology whereas complex viruses are made up of a combination of isometric and filamentous components.

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Category: Biotech Engineering MCQs
Sub Category: Virology Mcqs

282
Q:

Which term can be used for the meningococcal infection attack rate above 15 cases per 100,000 people for 2 consecutive weeks?

A) Epidemic B) Pandemic
C) Syndemic D) Endemic
 
Answer & Explanation Answer: A) Epidemic

Explanation: An epidemic is a term used for the meningococcal infection attack rate above 15 cases per 100,000 people for 2 consecutive weeks. Epidemic usually the spreading of a disease among a large number of people in the same place for some time.

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Category: Biotech Engineering MCQs
Sub Category: Virology Mcqs

245
Q:

Which of the following phase determines the specificity of the virus?

A) Uncoating B) Release
C) Attachment D) Penetration
 
Answer & Explanation Answer: C) Attachment

Explanation: The attachment phase determines the specificity of the virus for a particular type of host species. Once the attachment is done, it is followed by penetration, uncoating, biosynthesis, assembly and finally, the release of phage particles.

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Category: Biotech Engineering MCQs
Sub Category: Virology Mcqs

225
Q:

Which of the following viruses help dependovirus for replication?

A) Adenovirus B) Rhinovirus
C) Reovirus D) Influenza virus
 
Answer & Explanation Answer: A) Adenovirus

Explanation: Adenoviruses acts as a helper virus that helps in the replication of dependovirus. However, all the dependovirus does not require adenovirus for replication. The herpes virus may also act as a helper and some dependovirus may replicate even in the absence of helper viruses.

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Category: Biotech Engineering MCQs
Sub Category: Virology Mcqs

172
Q:

Which of the following is a genital tract infection?

A) Butcher’s wart B) Epidermodysplasia verruciformis
C) Epithelial hyperplasia D) Condyloma acuminatum
 
Answer & Explanation Answer: D) Condyloma acuminatum

Explanation: Condyloma acuminatum is a genital tract infection caused by papillomaviruses. It is caused by certain types of papillomavirus and is a sexually transmitted infection. It is also known as genital warts or anogenital warts.

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Category: Biotech Engineering MCQs
Sub Category: Virology Mcqs

141
Q:

Which of the following is also known as Deltavirus?

A) Hepatitis B B) Hepatitis A
C) Hepatitis C D) Hepatitis D
 
Answer & Explanation Answer: D) Hepatitis D

Explanation: Hepatitis D is also known as Deltavirus and is unique among human viruses and some regard it as a subviral agent falling outside the definition of a virus. It consists of single-stranded RNA as its genome.

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Category: Biotech Engineering MCQs
Sub Category: Virology Mcqs

129
Q:

Which of the following is not a category of the method of virus detection?

A) Multiplication B) Hematology
C) Serology D) Nucleic acid detection
 
Answer & Explanation Answer: B) Hematology

Explanation: Viruses are smaller microorganisms that require electron microscopy to be detection and this requires the concentration in excess. Thus, viruses are usually detected by indirect methods which fall into three categories: multiplication, serology and the detection of viral nucleic acid.

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Category: Biotech Engineering MCQs
Sub Category: Virology Mcqs

126