Multiple Choice Questions

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The finches of Galapagos islands provide an evidence in favour of

  • special creation

  • evolution due to mutation

  • retrogressive evolution

  • retrogressive evolution


D.

retrogressive evolution

Darwin's finches of Galapagos islands had common ancestors lateron whose beaks modified according to their feed habit. These provide evidence of geographical distribution. 

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About 98 percent of the mass of every living organism is composed of just six elements including carbon, hydrogen, nitrogen, oxygen and

  • phosphorus and sulphur

  • sulphur and magnesium

  • magnesium and sodium

  • magnesium and sodium

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What is common to whale, seal and shark?

  • Seasonal migration

  • Thick subcutaneous fat

  • Convergent evolution

  • Convergent evolution

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Which one of the following amino acids was not found to be synthesized in Miller's experiment?

  • Glycine

  • Aspartic acid

  • Glutamic acid

  • Glutamic acid

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When two species of different genealogy come to resemble each other as a result of adaptation, the phenomenon is termed

  • divergent evolution

  • microevolution

  • co-evolution

  • co-evolution

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An important evidence in favour of organic evolution is the occurrence of

  • homologous and vestigial organs

  • analogous and vestigial organs

  • homologous organs only

  • homologous organs only

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Adaptive radiation refers to

  • adaptations due to geographical isolation

  • evolution of different species from a common ancestor

  • migration of members of a species to different geographical areas

  • migration of members of a species to different geographical areas

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Industrial melanism as observed in peppered moth proves that

  • The true black melanic forms arise by a recurring random mutation.

  • The melanic form of the moth has no selective advantage over lighter form in industrial area

  • The lighter-form moth has no selective advantage either in polluted industrial area or non-polluted area

  • The lighter-form moth has no selective advantage either in polluted industrial area or non-polluted area

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Which one of the following statement is correct?

  • Stem cells are specialize cells

  • There is no evidence of the existence of gills during embryogensis of mammals

  • All plant and animal cells are totipotent

  • All plant and animal cells are totipotent

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The concept of chemical evolution is based on

  • cyrstallization of chemicals

  • interaction of water, air and clay under intense heat

  • effect of solar radiation on chemicals

  • effect of solar radiation on chemicals

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