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Zoology- Organic Evolution Theories Mcq Qusetions

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1. Jean Baptist de Lamarck - a French Naturalistbesides giving his famous theory of organic Evolutionalso coined the word:




2. The ultimate source of organic variations is:




3. Lamarcks theory of organic evolution was published in the book entitled:




4. Lamarcks Theory of Organic Evolution is based upon:




5. The animals of colder countries have small earsshort tail and limbs to avoid more loss of heat is the theme of:




6. Which of the following facts make Lamarckism doubtful:




7. Best suited examples given in favour of Lamarckian Theory are:




8. Neck and fore limbs in African giraffe increased in length as a result of:




9. Which of the following facts definitely casts doubt on Lamarckian theory:




10. Which of the following concepts is attributed to Lamarck:




11. Which of the following theories of evolution can best explain the vestigial organs:




12. Lamarcks theory of organic evolution cannot give best explanation for one of the following:




13. Which of the following facts is not correct about Lamarckism in the light of current scientific knowledge:




14. Which of the following statements will be wrong in contest of modern concept of evolution:




15. Neolamarckism states that:




16. Greatest blow to Lararckism came from the work of:




17. From the experiments upon mice by cutting the tails of new-born mice for more than twenty generations and yet no hereditary effectWeismann could conclude:




18. Weismann stated that a multicellular body is divisible into somaplasm and germplasm which separate at early embryonic life. Therefore only link between these will be:




19. According to Weismann theory which of the following facts will be correct:




20. By illustrating the examples of African giraffe and snakes Lamarck emphasized mainly that:




21. Which of the following features are raw materials in evolution according to Darwins Theory:




22. The processes associated with evolution of a species collectively mean:




23. When a populations large portion is destroyed by some calamitythe new populet from survivers shall have gene pool showing:




24. Which of the following concepts is attributed to Charles Darwin:




25. In which of the following booksDarwin published his theory:




26. Darwinism can be explained briefly by a chart consisting of observed facts and deductions which was drawn jointly by:




27. Which is the observed fact in the chart drawn by Darwin and Wallace:




28. From the observed fact namely Enormous fertility yet number is constant. Darwin and Wallace could make out some conclusion which is:




29. Which of the following facts Darwin and Wallace deduced from the observed fact Struggle for existencevariations and their transmission:




30. What could be deduced from Darwin and Wallaces observed fact entitledSurvival of the fittest and continuous changes in environment:




31. The statement entitledI eatyou eathe eatsI am eatenyou are eaten and he is eaten is indicative of:




32. If a population of organisms is introduced into a new territory where environmental conditions are favourable to itthe population grows rapidly because of:




33. The evolution of a species can be considered as the sum total of adoptive changes of species preserved by:




34. One of the objectives of experiments in plant breeding is to produce new varieties which have special properties (like high yieldresistance to certain diseases etc.). The method envolves production of mutants in laboratory and then subject them to particular type of solution needed. Which of the following treatments would be more effective:




35. Greatest drawback of Darwins Theory was that it could not offer suitable explanation for:




36. Increase in the length of neck and fore legs in African giraffe was explained by Lamarck due to the fact that ancient giraffes stretched their neck and fore legs generation after generation and the character acquired as a result of use was inherited. Darwin also explained the phenomenon. Can you point out the way in which Darwin described it:




37. One of the criticism to Darwinism was that it could not give satisfactory explanation for one of the following points:




38. Which of the following points have been put forward by the scientists for criticism of Darwins theory:




39. Cause of struggle for existence among animals is:




40. Which of the following is associated with name of Darwin:




41. Darwin did not have much idea of mutations but he used a word to denote them which was:




42. In formulating his theory of organic evolution by Natural SelectionDarwin was greatly influenced by the writings of:




43. The theory of organic evolution by process of natural selection was proposed by:




44. The book Origin of Species was published in the year:




45. The idea of Survival of fittest was first presented by:




46. Which of the following was most influential in formulation of Theory of Natural Selection:




47. Key point of Lararcks Theory was:




48. Ship on which Darwin travelled was:




49. One major criticism against Darwins Theory on evolution is:




50. The book Philosophie Zoologique written by Jean Baptist de Lamarck was published in the year:




51. The Theory of Natural Selection proposed by Charles Darwin for explaining Organic Evolution was based on:




52. The scientist who gave a severe blow to Lamarckian theory by giving Theory of continuity of germplasm was:




53. The idea Survival of Fittest propounded by Darwin as given by Herbert Spencer (1820-1903). Is this statement:




54. Adaptation of a species is its:




55. To be a successful event for evolution the mutation or change must occur in:




56. Lamarck was a French Naturalist who proposed:




57. One of the evolutionary concept in Biology was projected by Darwin in his book Origin of Species. It has been discussed as:




58. Which one of the following gactors is respobsible for the evolution of organisms according to Neo-Darwinism:




59. A new species is formed when:




60. Hugo De Vries while working on plants Oenothera Lamarchiana developed his famous theory of:




61. New species evolve by sudden and distinct heritable changes called mutations and not by Natural Selection. The idea was put forward by:




62. Frequency of a mutant gene in a population is expected to increase if that gene is:




63. Discontinuous Variations may be defined as:




64. Sudden heritable changes are called:




65. For evolutionthe most important requirement is:




66. Darwins finches are found in:




67. Mutations are mainly respobsible for:




68. Mutations are due to:




69. Mutations are generally:




70. Lamarckism envisages that the:




71. Hugo De Vries pioneered the theory of mutations to explain the mechanism of organic evolution. The material on which he performed experiments was:




72. Oenothera Lamarckiana the plant which was used by De Vries is commonly called:




73. According to the Theory of Continuity of Germplasm which was put forward by August Weismann:




74. Mutations are:




75. Which of the following facts does not hold truth with reference to De Vries Theory of organic evolution:




76. De Vries Theory of Organic Evolution is longer accepted because of one of the lowing criticisms:




77. Currently Evolution and Natural Selection are regarded as natural phenomena. Principles of Genetics applied to Population Dynamics have removed the drawbacks of Darwins Theory as a result neo Darwinism has emerged out as Modern Synthetic Theory of Organic Evolution. The theory was designated to explain organic evolution by:




78. Initial material to Medern Synthetic Theory of Organic Evolution was provided by Dobzhanskys book entitled:




79. Which of the following Scientists contributed a lot to Modern Synthetic Theory of Organic Evolution.