Questions

Q:

Why is DNA called the blueprint of life?

Answer

DNA is called the blueprint of life because it contains the instructions needed for an organism to grow, develop, survive and reproduce. DNA does this by controlling protein synthesis. Proteins do most of the work in cells, and are the basic unit of structure and function in the cells of organisms.

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Subject: Biology Exam Prep: AIEEE , Bank Exams
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Q:

Which is the heaviest metal among the following?

A) Gold B) Silver
C) Iron D) Copper
 
Answer & Explanation Answer: A) Gold

Explanation:
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Filed Under: Chemistry

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Q:

5 Digits Number?

What 5-digit number has the following features:

If we put the numeral 1 at the beginning, we get a number three times smaller than if we put the numeral 1 at the end of the number.

Answer

We can make an equation:


3(100000 + x) = 10x+1


(Why? Well, adding 100000 puts a 1 at the front of a five-digit number, and multiplying by 10 and adding 1 puts a 1 at the end of a number)


Solving this gives:


10x+1 = 3(100000 + x)
10x+1 = 300000 + 3x
10x = 299999 + 3x
7x = 299999
x = 299999/7 = 42857


The answer is 42857 (142857 is three times smaller than 428571).

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Q:

Which among the following countries , occupies the largest chunk of the Sunderbans Delta?

A) Bangladesh B) Burma
C) India D) Thailand
 
Answer & Explanation Answer: A) Bangladesh

Explanation:

Sunderbans is the name given to the dense impenetrable  tidal/ mangrove forest of Ganges-Brahmaputra delta because of abundant sundari trees found here.

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Filed Under: World Geography

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Q:

Lala lajapathi rai is the author of the book

A) India Divided B) Hind Swaraj
C) Unhappy India D) Mother India
 
Answer & Explanation Answer: C) Unhappy India

Explanation:
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Filed Under: Books and Authors

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Q:

The oval window is connected directly to which passageway?

A) scala tympani B) external auditory meatus
C) scala vestibuli D) pharyngotympanic tube
 
Answer & Explanation Answer: C) scala vestibuli

Explanation:

The oval window is connected directly to scala vestibuli.

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Filed Under: Biology
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Q:

The rate at which energy is transferred is called

A) Power B) Watt
C) Volt D) Potential
 
Answer & Explanation Answer: A) Power

Explanation:

Energy can be transferred from one system to the other. The rate at which energy is transferred from one system to other system is called POWER. Energy transferred in one second is called a watt.

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Filed Under: Physics
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Q:

In human relations, the irritation threshold is the

A) length of time an annoying behavior continues B) action that causes an annoyance
C) frequency of the annoying behavior D) point at which a person notices something and becomes annoyed
 
Answer & Explanation Answer: D) point at which a person notices something and becomes annoyed

Explanation:
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Filed Under: Physics
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