Questions

Q:

Which molecule is always single stranded?

A) RNA B) DNA
C) Mitochondria D) Cellulose
 
Answer & Explanation Answer: A) RNA

Explanation:

RNA is a single-stranded molecule in many of its biological roles and consists of a much shorter chain of nucleotides.

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Q:

In the following question, a word has been written in four different ways out of which only one is correctly spelt. Select the correctly spelt word.

A) Irresistable B)  Irresistible
C) Iresistible D) Iresistable
 
Answer & Explanation Answer: B)  Irresistible

Explanation:
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Q:

In the following question, out of the given four alternatives, select the one which is opposite in meaning of the given word.

 

Prim

A) Particular B) Informal
C) Straight D) Nice
 
Answer & Explanation Answer: B) Informal

Explanation:
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Q:

According to an estimate, almost ___ percent forests have been lost in the tropics, compared to only 1 percent in the temperate region.

A) 20 B) 40
C) 60 D) 80
 
Answer & Explanation Answer: B) 40

Explanation:
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Q:

Who invented "Coca Cola"?

A) Floyd Paxton B) Les Paul
C) John Pemberton D) Forrest Parry
 
Answer & Explanation Answer: C) John Pemberton

Explanation:
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Q:

Performance goals are used to

A) measure productivity B) determine a worker's attitude
C) measure effectiveness, but not efficiency D) communicate nonverbally
 
Answer & Explanation Answer: A) measure productivity

Explanation:

Performance goals are used to measure productivity.

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Q:

Which is a difference between proteins and carbohydrates and fats?

A) Proteins are composed of monomers; carbohydrates and fats are not. B) Excess carbohydrates and fats are stored; excess proteins are not.
C) Proteins are macromolecules; carbohydrates and fats are not. D) Carbohydrates and fats contain carbon, hydrogen, and oxygen; proteins do not.
 
Answer & Explanation Answer: B) Excess carbohydrates and fats are stored; excess proteins are not.

Explanation:

All proteins, carbohydrates and fats are macronutrients that we need to make living. They contribute to 90% of the dry weight of our diet. 

 

From the given options, Excess carbohydrates and fats are stored; excess proteins are not.

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Q:

Pellagra and Scurvy are caused by which pair of vitamin deficiency respectively _______________

A) VitaminC and VitaminD B) VitaminB-12 and VitaminC
C) VitaminC and VitaminA D) Vitamin A and VitaminB-12
 
Answer & Explanation Answer: B) VitaminB-12 and VitaminC

Explanation:
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