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:

Sulphur and Chlorine can have what type of a bond?

A) Polar covalent	B) Polyionic
C) Non-polar covalent	D) Ionic

Answer & Explanation Answer: A) Polar covalent

Explanation:

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Q:

Periyar National Park is in which mountain range?

A) Aravalli Range	B) Vindhya Range
C) Eastern Ghats	D) Western Ghats

Answer & Explanation Answer: D) Western Ghats

Explanation:

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Q:

In the following question, a sentence has been given in Active/Passive voice. Out of four alternatives suggested, select the one, which best expresses the same sentence in Passive/Active voice.

The kangaroo carried her baby in her pouch.

A) The baby is carried by the kangaroo in her pouch.	B) The baby is being carried by the kangaroo in her pouch.
C) The baby had been carried by the kangaroo in her pouch.	D) The baby was carried by the kangaroo in her pouch.

Answer & Explanation Answer: D) The baby was carried by the kangaroo in her pouch.

Explanation:

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Q:

In the following question, four words are given out of which one word is correctly spelt. Select the correctly spelt word.

A) annunciation	B) anunciation
C) annunceation	D) anunceation

Answer & Explanation Answer: A) annunciation

Explanation:

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Q:

A sentence has been given in Direct/Indirect Speech. Out of the four given alternatives, select the one which best expresses the same sentence in Indirect/Direct Speech.

He says, “Everybody is here.”

A) He says everybody was here	B) He says that everybody is here
C) He says that everybody was here	D) He said everybody were here

Answer & Explanation Answer: B) He says that everybody is here

Explanation:

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Q:

In the following question, sentence given with blank is to be filled in with an appropriate word. Select the correct alternative out of the four and indicate it by selecting the appropriate option.

The insecticide is very powerful and can kill a wide ___________ of insects.

A) volume	B) spectrum
C) rainbow	D) plethora

Answer & Explanation Answer: B) spectrum

Explanation:

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Filed Under: English
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Q:

In the following question, out of the four alternatives, select the alternative which will improve the bracketed part of the sentence. In case no improvement is needed, select "no improvement".

The news (had appeared) irrelevant at that time, but now it directly affects us.

A) have appeared	B) is appeared
C) had appears	D) no improvement

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