Questions

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:

Which of the following is a Dominant Autosomal Disorder ?

A) Albinism B) Cystic Fibrosis
C) Phenyl Ketorunia D) Alzheimer's Disease
 
Answer & Explanation Answer: D) Alzheimer's Disease

Explanation:
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Q:

Based on the common features like presence of notochord and dorsal hollow neural system, animals like fishes, amphibians, reptiles, birds along with mammals are included in which Phylum?

A) Mammalia B) Chordata
C) Primata D) Insecta
 
Answer & Explanation Answer: B) Chordata

Explanation:
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Q:

_________________ is a drug that makes your heart work more slowly, used for treating high blood pressure.

A) Contraceptive B) Beta­-Blocker
C) Depressant D) Enema
 
Answer & Explanation Answer: B) Beta­-Blocker

Explanation:
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Q:

The pH of a solutiion is 3. When its pH changes to 6, then H+ ion concentration

A) increases 2 times B) increases 3 times
C) decreases 1000 times D) decreases 100 times
 
Answer & Explanation Answer: C) decreases 1000 times

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Q:

A binding price ceiling is designed to

A) keep prices low B) increase efficiency
C) increase the quality of the good D) prevent shortages
 
Answer & Explanation Answer: A) keep prices low

Explanation:
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Q:

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

 

It is basic to a democracy that its citizens remain in harmony _______ one another. At the very least, they should _______ treat each other as enemies. Enmity is spreadonly by vested interests that hope to thrive _________ polarising citizens. The ______________ between professed love for the country and infecting the people with hatred remains ignored. There is no instance in history of the policy of ‘divide and rule’ _____________ people’s welfare.

 

they should _______ treat each other

 

A) no B) neither
C) not D) nor
 
Answer & Explanation Answer: C) not

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Q:

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

 

The groom said to the bride, "I will take good care of you."

 

A) The groom promised the bride that he would take good care of her. B) The groom has promised the bride that he will be taking good care of her.
C) The groom had promised the bride that he would have taken good care of her. D) The groom promises the bride that he would take good care of her.
 
Answer & Explanation Answer: A) The groom promised the bride that he would take good care of her.

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