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Q:

Which statements about viruses are true?

A) HIV contains reverse transcriptase. B) A retrovirus contains RNA.
C) Both A & B D) All RNA-containing viruses are retroviruses.
 
Answer & Explanation Answer: C) Both A & B

Explanation:

The statements true about viruses are :

 

1. The capsid enters the host cell if the virus is enveloped.

2. Enveloped viruses bud from the host cell. 

3. HIV contains reverse transcriptase.

4. A retrovirus contains RNA.

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Filed Under: Biology
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Q:

The peripheral nervous system consists of

A) Nerves from eyes to CNS B) Nerves from ears to CNS
C) Nerves from skin to CNS D) All of the above
 
Answer & Explanation Answer: D) All of the above

Explanation:
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Filed Under: Biology
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Q:

Study of Life in outer space is known as

A) Endobiology B) Neobiology
C) Exobiology D) Intrabiology
 
Answer & Explanation Answer: C) Exobiology

Explanation:

Study of Life in outer space or search of life external to Earth is known as Exobiology.

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Filed Under: Biology
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Q:

Is cholesterol Hydrophobic or Hydrophilic?

A) Hydrophobic B) Hydrophilic
C) Both A & B D) None of the above
 
Answer & Explanation Answer: C) Both A & B

Explanation:

Cholesterol is referred as an amphipathic molecule, that it contains its hydrophilic and hydrophobic parts.

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Filed Under: General Science
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Q:

Where is the Headquarters of WTO

A) Vienna B) Paris
C) Berne D) Geneva
 
Answer & Explanation Answer: D) Geneva

Explanation:
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Filed Under: World Organisations

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Q:

Which among the following is not correctly matched?

A) Parachute: W H carothers B) Barometer: Torricelli
C) Cells: Robert Hooke D) X- Ray: W Roentgen
 
Answer & Explanation Answer: A) Parachute: W H carothers

Explanation:
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Filed Under: Inventions
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Q:

Microorganisms that cause disease are called

A) Pathogens B) Microbes
C) Infectees D) None of the above
 
Answer & Explanation Answer: A) Pathogens

Explanation:
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Filed Under: General Science
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Q:

Daisy wheel printer is a type of

A) Impact printer B) Laser printer
C) Manual printer D) Matrix printer
 
Answer & Explanation Answer: A) Impact printer

Explanation:

A daisy-wheel printer works on the same principle as a ball-head typewriter. Daisy wheel printer is a type of impact printer invented in 1969.

Daisy_wheel_printer_is_a_type_of1557315359.jpg image

The daisy wheel is a disk made of plastic or metal on which characters stand out in relief along the outer edge. To print a character, the printer rotates the disk until the desired letter is facing the paper.

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Filed Under: General Science
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