Q:

Insects that transmit diseases are known as

A) Pathogens	B) Vectors
C) Drones	D) Scalars

Answer & Explanation Answer: B) Vectors

Explanation:

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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:

Anions are formed by _____.

A) losing of electrons	B) gaining of electrons
C) gaining of neutrons	D) losing of neutrons

Answer & Explanation Answer: B) gaining of electrons

Explanation:

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Q:

There are total _________ parliamentary seats (Rajya Sabha constituency) in Maharashtra.

A) 11	B) 19
C) 10	D) 1

Answer & Explanation Answer: B) 19

Explanation:

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Q:

Which layer of the earth's atmosphere contains the ozone layer?

A) Troposphere	B) Mesosphere
C) Ionosphere	D) Stratosphere

Answer & Explanation Answer: D) Stratosphere

Explanation:

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Q:

Land covers about ______ of the earth's surface.

A) 20%	B) 30%
C) 35%	D) 40%

Answer & Explanation Answer: B) 30%

Explanation:

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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:

In Microsoft Word, _____ is a position we set for placing and aligning text on a page.

A) Standard tool bar	B) View Buttons
C) Formatting tool bar	D) Tab stop

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