Q:

Polynucleotide chain of DNA contains

A) a nitrogenous base, deoxyribose sugar and phosphate group	B) a nitrogenous base, ribose sugar and phosphate group
C) deoxyribose sugar, ribose sugar and phosphate group	D) a nitrogenous base and phosphate group only

Answer & Explanation Answer: A) a nitrogenous base, deoxyribose sugar and phosphate group

Explanation:

The two DNA strands are called polynucleotidesbecause they are composed of simpler monomer units called nucleotides. Eachnucleotideis composed of one of four nitrogen-containingnucleobases (cytosine, guanine, adenine or thymine), a sugar called deoxyribose, and a phosphate group.

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Q:

Read each sentence to find out whether there is any error in any underlined part and indicate your response in the Answer Sheet against the corresponding letter i.e., (a) or (b) or (c). If you find no error, your response should be indicated as (d).

A) The peon	B) has not sweeped
C) the floor today.	D) No error

Answer & Explanation Answer: D) No error

Explanation:

The given sentence is grammatically correct and there is no error.

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Q:

Where was Guru Nanak Dev (the originator of Sikh religion) born?

A) Amritsar	B) Anandpur Sahib
C) Talwandi	D) Patna Sahib

Answer & Explanation Answer: C) Talwandi

Explanation:

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Q:

The area of Nepal is approximately _________ square kilometres.

A) 115187	B) 128540
C) 135789	D) 147181

Answer & Explanation Answer: D) 147181

Explanation:

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Q:

‘Altitude sickness’ is caused at high altitude due to

A) high partial pressure of oxygen	B) low partial pressure of oxygen
C) low level of haemoglobin	D) high partial pressure of carbon dioxide

Answer & Explanation Answer: B) low partial pressure of oxygen

Explanation:

Altitude sickness, the mildest form being acute mountain sickness (AMS), is the negative health effect of high altitude, caused by rapid exposure to low amounts of oxygen at high elevation.

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Q:

Which is the highest quality of hard coal?

A) Anthracite	B) Bituminous
C) Lignite	D) Peat

Answer & Explanation Answer: A) Anthracite

Explanation:

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Q:

A ________________ is known by different names in different parts of the world. It is called a ‘hurricane’ in North America.

A) funnel	B) whirlpool
C) cyclone	D) twister

Answer & Explanation Answer: C) cyclone

Explanation:

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Q:

ROM in computer science stands for?

A) Random Only Memory	B) Read Out Memory
C) Read Only Memory	D) Rotation Only Memory

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