Biology MCQs with answers Page - 129

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Q. Which among the given is true -

  • (A) RNA is the genetic material in all the viruses
  • (B) DNA is the genetic material in all the viruses
  • (C) DNA is the genetic material in most of the organism
  • (D) RNA is the genetic material in most viruses & bacteria

A

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Q. Radial vascular bundles are those in which

  • (A) phloem is surrounded by xylem
  • (B) xylem and phloem occur on the same radius
  • (C) xylem is surrounded by phloem
  • (D) xylem and phloem are found on different radii

A

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Q. Accupuncture is

  • (A) a disease of heart
  • (B) servicing of tubes & tyres
  • (C) a crop culture
  • (D) a treatment method with needles

A

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Q. Smooth muscles are likely to be found in

  • (A) muscles of arms
  • (B) muscles of legs
  • (C) heart
  • (D) stomach

A

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Q. An ice block with a piece of lead embeded in it floats in water. If ice melts the water level

  • (A) Remains same
  • (B) Rises
  • (C) Falls
  • (D) Falls 1st and then rises

A

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Q. Roughage, a necessary constituent of diet, consists largely of indigestible

  • (A) carbohydrates such as cellulose and lignin
  • (B) carbohydrates (cellulose and lignin) and unsaturated fatty acids
  • (C) carbohydrates (cellulose and lignin) and semi-cooked meat
  • (D) all of the above

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Q. Oxyntic cell is meant for the secretion of

  • (A) Hydrochloric acid
  • (B) Enterokinase
  • (C) Pepsin
  • (D) Lactic acid

A

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Q. Red algae differ from green algae and brown algae in having

  • (A) no flagellated stages in their life cycles
  • (B) no chlorophylla
  • (C) no differentiated cells
  • (D) no phycocyanin within their cells

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Q. Which among the given is incorrect

  • (A) AIDS is transmitted by homo & hetero-sexual contact
  • (B) AIDS causes ano-genital warts
  • (C) AIDS was 1st recognised in USA in 1981
  • (D) AIDS is retroviral disease

A

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Q. Fruiting body of mushrooms is present in

  • (A) Like dicotyledon seed
  • (B) Fungi
  • (C) Algae
  • (D) Like monocotyledon seeds

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