12th Standard CBSE - Biology - Evolution

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Question - 1

Which of the following walked like gorillas and chimpanzees?

  • A Dryopithecus
  • B Ramapithecus
  • C Both (a) and (b)
  • D Australopithecus

Question - 2

The turtle and tortoise evolved from

  • A Amphibians
  • B Fishes
  • C Mammals
  • D None of these

Question - 3

Which of the following evolved first

  • A Homo Sapiens
  • B Homo habilis
  • C Homo erectus
  • D Tyrannosaurus

Question - 4

Which of the following walked upright?

  • A Dryopithecus
  • B Ramapithecus
  • C Both (a) and (b)
  • D Australopithecus

Question - 5

Presence of gills in the tadpole of frog indicates that

  • A fishes evolved from frog-like ancestors
  • B frogs will have gills in future
  • C frogs evolved from gilled ancestors
  • D fishes were amphibious in the past

Question - 6

Which of the following is a living fossil?

  • A Moss
  • B Saccharomyces
  • C Spirogyra
  • D Cyas

Question - 7

Diversification in plant life appeared

  • A due to abrunt mutation
  • B suddenly on earth
  • C by seed dispersal
  • D due to long periods of evolutionary changes

Question - 8

Age of fossils in the past was generally determined by radiocarbon method and other methods involving radioactive elements found in the rocks.More precise methods, which were used recently and led to the revision of the evolutionary periods for different groups of organisms,includes

  • A study of the conditions of fossilization
  • B electron spin resonance(ESR) and fossil DNA
  • C study of carbohydrates/proteins in rocks
  • D study of carbohydrates/proteins in fossils

Question - 9

A baby has been born with a small tail.It is a case exhibiting

  • A retrogressive evolution
  • B mutation
  • C atavism
  • D mamorphosis

Question - 10

The most likely reason for the development of resistance against pesticides in insects damaging the crops is

  • A genetic recombination
  • B directed mutation
  • C acquired heritable changes
  • D random mutation