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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:

AIDS is caused by the Human Immunodeficiency Virus (HIV). The transmission of HIV infection generally occurs through

A) eating contaminated food and water   B) transfusion of contaminated blood and blood products
C) inhaling polluted air D) shaking hand with infected person
 
Answer & Explanation Answer: B) transfusion of contaminated blood and blood products

Explanation:

AIDS is caused by the Human Immuno deficiency Virus (HIV), a member of a group of viruses called retrovirus, which have an envelope enclosing the RNA genome. Transmission of HIV-infection generally occurs by (a) sexual contact with infected person, (b) by transfusion of contaminated blood and blood products, (c) by sharing infected needles as in the case of intravenous drug abusers and (d) from infected mother to her child through placenta.

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Filed Under: Biology
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Q:

Diwane­i­khas is in which of these monuments?

A) Humayun's Tomb B) Mahabodhi Temple Complex
C) Qutub Minar D) Red Fort Complex
 
Answer & Explanation Answer: D) Red Fort Complex

Explanation:
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Filed Under: Indian Geography
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Q:

Which system is used by the Digital Computers to encode data and Programs?

A) Decimal B) Binary
C) Hexa decimal D) Octal
 
Answer & Explanation Answer: B) Binary

Explanation:
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Filed Under: Computer
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Q:

Parliament conducts __________ sessions each year.

A) 1 B) 2
C) 3 D) 4
 
Answer & Explanation Answer: C) 3

Explanation:
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Filed Under: Indian Politics
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Q:

Terminal velocity ________.

A) first increases before decreasing B) is constant
C) first decreases before increasing D) always keeps on increasing
 
Answer & Explanation Answer: B) is constant

Explanation:
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Filed Under: Physics
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Q:

In the following passage some of the words have been left out. Read the passage carefully and choose the correct answer for the given blank out of the four alternatives.

 


We have rich cultural _____ . Its roots go into _____. Ours has never been a closed ______. It has _______ just like a tree, ______ to external ______ but holding its roots _______. But one wonders today whether it will be able to hold its _____. The ______ of our cultural heritage has come under the _____ of western culture.

 


to external ______

 

A) influences B) facts
C) modifications D) institutions
 
Answer & Explanation Answer: A) influences

Explanation:
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Filed Under: English
Exam Prep: Bank Exams , GRE , TOEFL

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Q:

In the following question, out of the four alternatives, select the alternative which is the best substitute of the phrase.

 

work extremely hard or incessantly.

A) job B) craft
C) toil D) activity
 
Answer & Explanation Answer: C) toil

Explanation:
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Filed Under: English
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