Dr. James Watson discovered the structure of DNA in __________...? Mcqs

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Dr. James Watson discovered the structure of DNA in __________...?

(A) 1953
(B) 1955

(C) 1957
(D) 1857

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A___is a stiff bar that rests on a support called a fulcrum which lifts or move loads....?

(A) Pulley
(B) Wedge

(C) Screw
(D) Lever

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The offspring of a bear is called...?

(A) Cub
(B) Pup

(C) Calf
(D) Fawn

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Orange belongs to the family...?

(A) Malvaceae
(B) Rutaceae

(C) Composite
(D) None of These

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Animal which captures and readily kills living animals for its food is called___________...?

(A) Parasite
(B) Scavenger

(C) Predator
(D) Mammal

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Which animal can live longest without water...?

(A) Elephant
(B) Cat

(C) Rat
(D) Camel

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Virus is__________...?

(A) unicellular
(B) multicellular

(C) acellular
(D) none of these

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Chemical reaction requires particular conditions to carry down at proper rate, especially...?

(A) Temperature and Nature
(B) Nature and Pressure

(C) Nature and Structure
(D) Temperature and Pressure

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Second name of ethyl alcohol is___________...?

(A) Ethene
(B) Ethanol

(C) Propyle
(D) none

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Which of the following pollutants in water causes “Minamata disease...?

(A) Methyl Mercury
(B) Lead

(C) Salmonella
(D) Perchlorate

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