Questions

Q:

Which of the following elements has the lowest melting point?

A) Iron B) Nitrogen
C) Iodine D) Lead
 
Answer & Explanation Answer: B) Nitrogen

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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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Q:

Sectoral distribution of GDP index measures_________

A) Agriculture development of a country B) Economic development of a country
C) Social development of a country D) Socio­Economic development of a country
 
Answer & Explanation Answer: B) Economic development of a country

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Q:

The large collection of stars, dust and gas held together by gravitational attraction between components is known as

A) Cluster B) Atmosphere
C) Galaxy D) Sun Family
 
Answer & Explanation Answer: C) Galaxy

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Q:

The major ingredient of leather is

A) Collagen B) Carbohydrate
C) Nucleic acid D) Polymer
 
Answer & Explanation Answer: A) Collagen

Explanation:

Leather is a durable and flexible material created by tanning animal rawhide and skins. The major ingredient of leather is Collagen.

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Q:

Which university has been ranked at the top in the Swachhta Ranking 2017 released by the Union Government?

A) Banaras Hindu University B) Hyderabad University
C) O.P. Jindal University D) Madurai University
 
Answer & Explanation Answer: C) O.P. Jindal University

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Q:

A computer language that expresses the presentation of structured documents, such as CSS, is called _____.

A) Command Language B) Machine Language
C) Markup Language D) Style Sheet Language
 
Answer & Explanation Answer: D) Style Sheet Language

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Q:

Friction is caused by the ______________ on the two surfaces in contact.

A) irregularities B) smoothness
C) densities D) gaps
 
Answer & Explanation Answer: A) irregularities

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Filed Under: Physics
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