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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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Filed Under: Biology
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Q:

How much water (in litres) must be added to 80 litres solution of milk and water containing 10% milk, so that it becomes a 5% milk solution?

A) 10 B) 20
C) 40 D) 80
 
Answer & Explanation Answer: D) 80

Explanation:
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Filed Under: Alligation or Mixture
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Q:

80 litre mixture of milk and water contains 10% milk. How much milk (in litres) must be added to make water percentage in the mixture as 80%?

A) 8 B) 9
C) 10 D) 12
 
Answer & Explanation Answer: C) 10

Explanation:
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Filed Under: Alligation or Mixture
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Q:

Three positions of a cube are shown below. What will come opposite to face containing '5'

A) 6 B) 1
C) 3 D) 2
 
Answer & Explanation Answer: B) 1

Explanation:
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Filed Under: Cubes and Dice
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Q:

Two positions of a cube are shown. What number will come on the opposite to face containing '4'?

A) 1 B) 2
C) 3 D) 6
 
Answer & Explanation Answer: A) 1

Explanation:
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Filed Under: Cubes and Dice
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Q:

Three positions of a cube are shown below. What will come opposite to face containing '5'?

A) 1 B) 3
C) 4 D) 5
 
Answer & Explanation Answer: A) 1

Explanation:
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Filed Under: Cubes and Dice
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Q:

Red data book contains data of which of the following?

A) All plant species B) All animal species
C) All endangered species D) All extinct species
 
Answer & Explanation Answer: C) All endangered species

Explanation:
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Filed Under: General Science
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Q:

Two positions of a cube are shown below. What will come opposite to face containing 'B'?

A) Q B) T
C) S D) B
 
Answer & Explanation Answer: A) Q

Explanation:
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Filed Under: Image Analysis
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