Which organelle contains thread-like structures that store chemical instructions for cell growth and function...? Mcqs

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Which organelle contains thread-like structures that store chemical instructions for cell growth and function...?

(A) Mitochondria
(B) Ribosomes

(C) Chromosomes
(D) Lysosomes

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The theory of Expanding Universe was first propounded by____________...?

(A) Einstein
(B) Newton

(C) Gahleo
(D) Hubble

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Reflecting prisms usually work on the principle of total ____...?

(A) Internal Reflection
(B) External Reflection

(C) Refraction
(D) Diffraction

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A region on a longitudinal wave where the particles are furthest apart is called...?

(A) Rarefaction
(B) Compression

(C) Crest
(D) Trough

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All are characters of enzymes except...?

(A) Enzyme speed up a biochemical reaction
(B) Enzymes are sensitive to minor change in pH

(C) Enzyme activity enhanced by inhibitors
(D) Enzyme portion where substrate attach called active site

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Which of the following characteristics are examples of inherited traits in humans...?

(A) Colour of hair, skin, eyes
(B) Blood group

(C) Shape of nose and lips
(D) All of these

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Magnalium is an alloy of_____________...?

(A) Magnesium and Lead
(B) Aluminium and Zinc

(C) Aluminium and Magnesium
(D) Aluminium and Mercury

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Which take the shape and volume of a container they are placed in...?

(A) Liquids
(B) Gases

(C) Solids
(D) None

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When the angle of refraction is 90° and the refractive index for water is 1. 33, the critical angle is ______...?

(A) 48.8°
(B) 50.0°

(C) 49.1°
(D) 51.0°

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Salinization is ___________...?

(A) Accumulation of salts in water
(B) Accumulation of salts in soil

(C) Accumulation of salts in body
(D) Accumulation of salts in animals

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