GS Biology Questions and Answers

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Q101
The hypothesis of ‘Coupling and Repulsion’ for linkage was formulated by-
  • A Sutton and Boveri
  • B Bateson & Punnet
  • C T.H. Morgan
  • D W. Sutton
Answer: Option B
Q102
Balanoglossus is commonly known as-
  • A Earthworm
  • B Tapeworm
  • C Corn worm
  • D Tongue worm
Answer: Option D
Q103
In Drosophila, sex determination depends on-
  • A Y-chromosome
  • B X-chromosome
  • C Autosome
  • D X-chromosome & autosome both
Answer: Option D
Q104
Nonsense codons are-
  • A AUG, AAU, UAG
  • B GGU, AGU, AUG
  • C UAG, UAA, UGA
  • D GAU, AAU, GUA
Answer: Option C
Q105
In which stage does centromere divide in two ?
  • A Metaphase-I
  • B Prophase-I
  • C Metaphase-II
  • D Anaphase-II
Answer: Option D
Q106
Which animal is egg laying mammal ?
  • A Didelphys
  • B Macropus
  • C Pteropus
  • D Tachyglossus
Answer: Option D
Q107
An oil producing gland on the tail of bird is known as-
  • A Preen gland
  • B Mucus gland
  • C Green gland
  • D Sebaceous gland
Answer: Option A
Q108
A snake that is viviparous is-
  • A The Russell’s pitless viper
  • B The pit viper
  • C Rattle snake
  • D Kraits
Answer: Option B
Q109
A gland which is found on undersurface of the thighs of male lizard ?
  • A Sudorific gland
  • B Femoral gland
  • C Green gland
  • D Stink gland
Answer: Option B
Q110
Which of the following is not a path flagellate ?
  • A Leishmania
  • B Giardia
  • C Trypanosoma
  • D Noctiluca
Answer: Option D

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