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ACELLULAR LIFR

20 questions found

Practice Questions

Viral genome inserted into bacterial DNA is termed as:

A. Lysogeny

B. Prophage ✓

C. Lytic cycle

D. Binary fission

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nmdcat.online ACELLULAR LIFR

Jun 24, 2026

Which of the following is a double-stranded DNA virus?

A. Influenza

B. HIV

C. Herpesvirus ✓

D. Hepatitis A

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nmdcat.online ACELLULAR LIFR

Jun 24, 2026

What is the shape of the HIV virus?

A. Rod-shaped

B. Spherical ✓

C. Helical

D. Cuboidal

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nmdcat.online ACELLULAR LIFR

Jun 24, 2026

Which of the following is a characteristic of viroids?

A. Protein coat only

B. Circular single-stranded RNA ✓

C. Double-stranded DNA

D. Lipid envelope

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nmdcat.online ACELLULAR LIFR

Jun 24, 2026

Prions differ from viruses because they contain:

A. DNA only

B. RNA only

C. Protein only ✓

D. Protein and RNA

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nmdcat.online ACELLULAR LIFR

Jun 24, 2026

Viruses are considered obligate intracellular parasites because:

A. They have no ribosomes

B. They can only replicate inside host cells ✓

C. They contain only one type of nucleic acid

D. They lack mitochondria

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nmdcat.online ACELLULAR LIFR

Jun 24, 2026

The protein coat surrounding the genetic material in a virus is called:

A. Capsid ✓

B. Envelope

C. Capsomere

D. Peplomer

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nmdcat.online ACELLULAR LIFR

Jun 24, 2026

Which of the following is the primary criterion used for classifying viruses?

A. Host specificity

B. Genetic material ✓

C. Mode of transmission

D. Shape of capsid

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nmdcat.online ACELLULAR LIFR

Jun 24, 2026

Which enzyme is used by retroviruses to convert RNA into DNA?

A. Integrase

B. Protease

C. Reverse transcriptase ✓

D. DNA polymerase

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nmdcat.online ACELLULAR LIFR

Jun 24, 2026

Tobacco Mosaic Virus (TMV) is an example of a:

A. DNA virus

B. RNA virus ✓

C. Bacteriophage

D. Enveloped virus

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nmdcat.online ACELLULAR LIFR

Jun 24, 2026

The subunits that make up the viral capsid are known as:

A. Nucleoids

B. Capsomeres ✓

C. Spikes

D. Peplomers

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nmdcat.online ACELLULAR LIFR

Jun 24, 2026

Which of the following structures aids a virus in attaching to host cells?

A. Nucleus

B. Lipid envelope

C. Glycoproteins ✓

D. Ribosomes

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nmdcat.online ACELLULAR LIFR

Jun 24, 2026

Bacteriophages that induce immediate bacterial cell lysis are called:

A. Temperate phages

B. Lysogenic phages

C. Virulent phages ✓

D. Prophages

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nmdcat.online ACELLULAR LIFR

Jun 24, 2026

Which viral shape is characterized by a long tube or rod-like structure?

A. Icosahedral

B. Spherical

C. Helical ✓

D. Complex

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nmdcat.online ACELLULAR LIFR

Jun 24, 2026

The viral envelope is primarily derived from:

A. Host cell membrane ✓

B. Viral genome

C. Capsid proteins

D. Ribosomes

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nmdcat.online ACELLULAR LIFR

Jun 24, 2026

Which of the following is NOT a component of a typical virus?

A. Capsid

B. Genetic material

C. Nucleus ✓

D. Envelope

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nmdcat.online ACELLULAR LIFR

Jun 24, 2026

Viruses are unique from bacteria because they have the ability to:

A. Reproduce

B. Crystallize ✓

C. Mutate

D. Metabolize

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nmdcat.online ACELLULAR LIFR

Jun 24, 2026

Which virus belongs to Baltimore Class VI?

A. HIV ✓

B. Poliovirus

C. Smallpox

D. Rabies

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nmdcat.online ACELLULAR LIFR

Jun 24, 2026

Which instrument was essential for revealing the structure of viruses?

A. Light microscope

B. Compound microscope

C. Electron microscope ✓

D. Dissecting microscope

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nmdcat.online ACELLULAR LIFR

Jun 24, 2026

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ACELLULAR LIFR

Practice Questions

Viral genome inserted into bacterial DNA is termed as:

Which of the following is a double-stranded DNA virus?

What is the shape of the HIV virus?

Which of the following is a characteristic of viroids?

Prions differ from viruses because they contain:

Viruses are considered obligate intracellular parasites because:

The protein coat surrounding the genetic material in a virus is called:

Which of the following is the primary criterion used for classifying viruses?

Which enzyme is used by retroviruses to convert RNA into DNA?

Tobacco Mosaic Virus (TMV) is an example of a:

The subunits that make up the viral capsid are known as:

Which of the following structures aids a virus in attaching to host cells?

Bacteriophages that induce immediate bacterial cell lysis are called:

Which viral shape is characterized by a long tube or rod-like structure?

The viral envelope is primarily derived from:

Which of the following is NOT a component of a typical virus?

Viruses are unique from bacteria because they have the ability to:

Which virus belongs to Baltimore Class VI?

Which instrument was essential for revealing the structure of viruses?

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