GS Biology Questions and Answers

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Q31
Chromosomes contain-
  • A Protein only
  • B DNA and protein
  • C DNA, RNA and histone
  • D DNA, RNA, histone and non-histone proteins
Answer: Option B
Q32
Which are phagocytes in liver ?
  • A Kupffer cells
  • B Aciner cells
  • C Diter cells
  • D Hensen's cells
Answer: Option A
Q33
Termites digest wood with the help of an enzyme secreted by the-
  • A Salivary glands
  • B Cells in the midgut
  • C Symbiotic protozoa
  • D Bacteria and fungi outside the body
Answer: Option C
Q34
In honeybee colony the drones are produced by-
  • A Fertilized eggs
  • B Unfertilized eggs
  • C Larvae fed upon leaves
  • D Fasting larvae
Answer: Option B
Q35
Jacobson's organ is concerned with-
  • A Smell
  • B Burrowing
  • C Touch
  • D Vision
Answer: Option A
Q36
Body organisation in Hydra is of-
  • A Tissue grade
  • B Organ grade
  • C Cellular grade
  • D Organ system grade
Answer: Option A
Q37
Leech obtains continuous blood flow from its victim by pouring in it-
  • A Heparin
  • B Hirudin
  • C Insulin
  • D Pepsin
Answer: Option B
Q38
Spicules of Sponges are formed by-
  • A Procytes
  • B Pinacocytes
  • C Scleroblasts
  • D Thesocytes
Answer: Option B
Q39
Heterocoelous centrum is a characteristics of-
  • A Amphibia
  • B Reptilia
  • C Birds
  • D Mammalia
Answer: Option C
Q40
The exclusively sedentary protochordate animals are found in the class-
  • A Pterobranchia
  • B Larvacea
  • C Ascidiacea
  • D Thaliacea
Answer: Option A

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