Questions

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:

___________ is a typically one­celled, reproductive unit capable of giving rise to a new individual without sexual fusion.

A) Egg B) Spore
C) Sperm D) Seed
 
Answer & Explanation Answer: B) Spore

Explanation:
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Q:

Which of the following gases is heavier than oxygen?

A) Carbon dioxide B) Ammonia
C) Methane D) Helium
 
Answer & Explanation Answer: A) Carbon dioxide

Explanation:
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Q:

Sectoral distribution of GDP index measures_________

A) Agriculture development of a country B) Economic development of a country
C) Social development of a country D) Socio­Economic development of a country
 
Answer & Explanation Answer: B) Economic development of a country

Explanation:
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Q:

There are how many vocal cords in the human voice box?

A) One B) Two
C) Three D) Four
 
Answer & Explanation Answer: B) Two

Explanation:
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Q:

Whose tributary is Tawa River?

A) Narmada B) Tapi
C) Chambal D) Yamuna
 
Answer & Explanation Answer: A) Narmada

Explanation:
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Q:

In the following question, out of the four alternatives, select the alternative which best expresses the meaning of the idiom/phrase.

Pull the plug

 

A) Behave greedily and take the most of the shared things for oneself. B) Do something to stop the persistent losses.
C) Prevent something from happening or continuing. D) Play loud irritating music.
 
Answer & Explanation Answer: C) Prevent something from happening or continuing.

Explanation:
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Q:

A sentence has been given in Direct/Indirect Speech. Out of the four given alternatives, select the one which best expresses the same sentence in Indirect/Direct Speech.

 

“Do you really come from Spain?” said the Queen.

 

A) The Queen asked did he really came from Spain. B) The Queen enquired about his country.
C) The Queen asked whether he really came from Spain. D) The Queen ask which country he is from.
 
Answer & Explanation Answer: C) The Queen asked whether he really came from Spain.

Explanation:
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