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 Biology Questions

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Q:

Which of the following is the main end product of carbohydrate digestion?

A) Fats B) Lipids
C) Glucose D) Cellulose
 
Answer & Explanation Answer: C) Glucose

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Q:

How many layers does Human Skin have?

A) 5 B) 7
C) 11 D) 3
 
Answer & Explanation Answer: D) 3

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Q:

The Mutation Theory was proposed by _____.

A) Charles Lyell B) William Smith
C) Hugo De Vries D) Harrison Schmitt
 
Answer & Explanation Answer: C) Hugo De Vries

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Q:

Animals belonging to phylum _____________ are fundamentally characterised by the presence of a notochord, a dorsal hollow nerve cord and paired pharyngeal gill slits.

A) Annelida B) Chordata
C) Arthropoda D) Platyhelminthes
 
Answer & Explanation Answer: B) Chordata

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Q:

__________________ is a leaf where the leaflets are arranged along the middle vein.

A) Pinnately compound leaf B) Palmately compound leaf
C) Compound leaf D) Simple leaf
 
Answer & Explanation Answer: A) Pinnately compound leaf

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Q:

Algal bloom results from

A) Global warming B) Salination
C) Eutrophication D) Biomagnification
 
Answer & Explanation Answer: C) Eutrophication

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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:

There are how many vocal cords in the human voice box?

A) One B) Two
C) Three D) Four
 
Answer & Explanation Answer: B) Two

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