An atom of an element has 11 protons, 11 electrons and 12 neutrons. The atomic mass of an atom is...? Mcqs

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An atom of an element has 11 protons, 11 electrons and 12 neutrons. The atomic mass of an atom is...?

(A) 11
(B) 12

(C) 22
(D) 23

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Gel electrophoresis is used in...?

(A) Amplifying DNA
(B) Sequencing DNA

(C) Separating DNA fragments on the basis of size
(D) Cloning DNA

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About the requirement of light for germination...?

(A) Some seeds germinate in dark whereas some require light
(B) All seeds germinate in dark

(C) All seeds germinate in light
(D) None

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The good sources of Vitamin-C are________...?

(A) green leafy vegetables
(B) seeds

(C) fresh vegetables and fruits
(D) sea foods

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What is the most significant environmental risk associated with hazardous waste...?

(A) Increased use of land for landfills
(B) Destruction of Habitat

(C) Air pollution
(D) Contamination of Ground water

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The only source of energy on earth is ____...?

(A) Moon
(B) Star

(C) Water
(D) Sun

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The distance between the optical center and the principal focus is called ____...?

(A) Focal Length
(B) Focal Point

(C) Optical Centre
(D) Centre of Curvature

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The promoter sites for...?

(A) initiation of replication
(B) Initiation of transcription

(C) Protein synthesis
(D) DNA repair

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Very High Frequency (VHF) have __________ wavelengths...?

(A) shorter
(B) shortest

(C) longer
(D) longest

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A wind which reverses seasonally is known as_____...?

(A) Trade
(B) Cyclonic

(C) Monsoon
(D) Polar

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