MCQs

11212 questions found

Practice Questions

A vector has a horizontal component of 6 units and a vertical component of 8 units. The magnitude of this vector is…

A. 14 units

B. 10 units ✓

C. 2 units

D. 48 units

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nmdcat.online Physics

Jun 25, 2026

The vertical (y) component of a velocity vector of 50 m/s making an angle of 60° with the horizontal is approximately…

A. 25.0 m/s

B. 50.0 m/s

C. 35.4 m/s

D. 43.3 m/s ✓

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nmdcat.online Physics

Jun 25, 2026

A force of 100 N is directed at an angle of 30° with respect to the positive x-axis. Its horizontal (x) component is approximately…

A. 50.0 N

B. 86.6 N ✓

C. 100 N

D. 70.7 N

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nmdcat.online Physics

Jun 25, 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

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

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 double-stranded DNA virus?

A. Influenza

B. HIV

C. Herpesvirus ✓

D. Hepatitis A

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nmdcat.online ACELLULAR LIFR

Jun 24, 2026

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

The genetic material of a virus can be:

A. DNA only

B. RNA only

C. Either DNA or RNA ✓

D. Both DNA and RNA

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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

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

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 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

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 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

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 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

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

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

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MCQs

Practice Questions

A vector has a horizontal component of 6 units and a vertical component of 8 units. The magnitude of this vector is…

The vertical (y) component of a velocity vector of 50 m/s making an angle of 60° with the horizontal is approximately…

A force of 100 N is directed at an angle of 30° with respect to the positive x-axis. Its horizontal (x) component is approximately…

Prions differ from viruses because they contain:

Which of the following is a characteristic of viroids?

What is the shape of the HIV virus?

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

Viral genome inserted into bacterial DNA is termed as:

The genetic material of a virus can be:

Which instrument was essential for revealing the structure of viruses?

Which virus belongs to Baltimore Class VI?

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

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

The viral envelope is primarily derived from:

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

Bacteriophages that induce immediate bacterial cell lysis are called:

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

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

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

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