Questions

Q:

Second generation computers were developed during

A) 1956 - 1963 B) 1970 - 1975
C) 1975 - 1980 D) 1990 - 2000
 
Answer & Explanation Answer: A) 1956 - 1963

Explanation:

Second generation computers were developed during 1956 - 1963.

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Q:

What stays where it is when it goes off?

A) An Alarm B) A T.V
C) A light switch D) All of the above
 
Answer & Explanation Answer: D) All of the above

Explanation:

All the above will stay where they are when they goes off. Basically anything that can swithch on or off will come under this.

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Q:

Heritable variation is required for which of the following?

A) Evolution B) Asexual reproduction
C) Mitosis D) Meiosis
 
Answer & Explanation Answer: A) Evolution

Explanation:

Heritable variation is one of the four most important factors that affect whether natural selection can occur. These factors include

1) Heritable variation

2) Descent with modification

3) Struggle for survival, and necessarily if the others are satisfied

4) Survival of the fittest.

Heritable variation allows for possibly beneficial, negative, or even neutral mutations to get filtered during each generation by natural selection--weeding out negative mutations, passing on positive and neutral ones. Without heritable variation, species would quickly fall victim to parasites who take advantage of identical genetic material in a population and evolution would not occur.

Variation is the raw material of evolution.

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Q:

Why address bus in unidirectional and data bus is bidirectional?

Answer

Because there is no need address traansaction between processor and peripheral device but data bus is needed because data has to be read and write

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Subject: Hardware

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Q:

Who was the founder of Mahakali Pathshala in Calcutta?

A) Her Holiness Mataji Maharani Tapaswini B) Sister Nivedita
C) Madamee Blavatsky D) Sarojini Naidu
 
Answer & Explanation Answer: A) Her Holiness Mataji Maharani Tapaswini

Explanation:

Mataji Maharani Tapaswini was one of the strongest proponents of female education in India. Her greatest contribution came in the form of the Mahakali Pathshala which she set up in Kolkata in 1893.

The school was a completely indigenous affair which did not rely on either foreign aid or assistance. The education of girls was carried out on a strictly national basis in the hopes that they would be able to revive and regenerate Hindu society.

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Filed Under: Indian History
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Q:

A colour blind person has difficulty in distinguishing which of the two colours ?

A) Green & Red B) White & Red
C) Blue & Red D) Red & Black
 
Answer & Explanation Answer: A) Green & Red

Explanation:
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Q:

Which of these is NOT a lipid?

A) Wax B) Cholesterol
C) RNA D) Phospholipid
 
Answer & Explanation Answer: C) RNA

Explanation:

RNA is not a lipid among the given options.

 

A lipid is a substance of biological origin that is soluble in nonpolar solvents. It comprises a group of naturally occurring molecules that include fats, waxes, sterols, fat-soluble vitamins (such as vitamins A, D, E, and K), monoglycerides, diglycerides, triglycerides, and phospholipids.

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Filed Under: Biology
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Q:

Who Discovered The Nucleus of a Cell?

A) Otto Hahn B) John Dalton
C) Robert Brown D) Marie Curie
 
Answer & Explanation Answer: C) Robert Brown

Explanation:

Robert Brown, Scottish botanist, Discovered The Nucleus of a Cell in 1831, London. When Brown was studying orchids under microscope when he observed an opaque area, which he called the "Areola" or "Nucleus", in the cells of the flower's outer layer.

The nucleus was also described by Franz Bauer in 1804 but in detail Robert Brown made it in 1831.

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Filed Under: Inventions
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