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ZAK TEST SERIES PLUS TWO – 2022, Evolution, Score: 30, Time: 1 hr, PART I, A. Answer any three questions from 1 to 4. Each carries 1 score. (3x1=3), 1. Rearrange the following in the order of their evolution period, Australopithecines ,Neanderthal man ,Homo sapiens ,Homo erectus,, Dryopithecus, 2. Vertebrates brain is an example for ----------3. Which theory talks about huge explosion that lead to origin of universe ?, 4. Note the relationship between the first pair and complete second pair, a) Natural selection : Darwin, Inheritance of acquired character : ......................., b) Heart of vertebrate : Homologous organ, Flipper of penguin and Dolphin : .............., B. Answer all questions from 5 to 6. Each carries 1 score. (2x1=2), 5. a) Identify the organism ,and write down the evolutionary phenomenon shown, by it., , 6. Darwin’s theory of natural selection was independently proposed by -------PART II, A. Answer any two questions from 7 to 9. Each carries 2 scores. (2x2=4), 7. Change in the Hardy- Weinberg equilibrium causes speciation, a) Write down four factors affecting the Hardy- Weinberg equilibrium., 8. Differentiate the terms adaptive radiation and parallel evolution., 9. a) Identify the phenomenon given below, , b) Explain the evolutionary process behind it., B. Answer any two questions from 10 to 13. Each carries 2 scores. (2x2=4), 10. Compare mutation and natural selection., 11.Differentiate the terms gene flow and genetic drift, 12.Compare homologous organs and analogous organs., 13. Compare stabilizing selection and directional selection

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PART III, A. Answer any three questions from 14 to 17. Each carries 3 scores. (3x3=9), 14. p2+2pq+q2=1.This is used to study the change in the allele frequency in a, population, a) Define p and q, b) Describe the genetic equilibrium or Hardy- Weinberg equilibrium based on, this equation, c) Write down four factors affecting the Hardy- Weinberg equilibrium, 15., , ., , a) Identfy the experiment and write down the aim of the experiment., b) Name the gases used in ths experiment., c) What was the source of energy in this experiment, , 16. Write down the significance of the following:, a) Thorn and tendrils of Bougainvillea and Cucurbita, b) Sweet potato (root modification) and potato (stem modification), c) Placental wolf and Tasmanian, 17. a) Briefly describe the embryological support for evolution, b) Name the scientist who disapproved above findings., B. Answer the following. It carries 3 score. (1x3=3), 18. Write down the contributions of the following, a) Oparin of Russia and Haldane of England b) Louis Pasteur, c) S.L. Miller

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PART IV, Answer any one questions from 19 to 20. Each carries 5 scores. (1x5=5), 19.Study the given graphs and answer the questions., , i) Identify the one which shows- a)Stabilising selection b) Directional selection, c) Disruptive selection, ii) Mention the types of individuals selected in each graph., iii) Write down its significance in evolution., 20. Ramapithecus , Homo sapiens, Dryopithecus, Homo habilis,, Australopithecines, Homoe erectus, Different stages of human evolution is given, a) Arrange them in their correct order., b) Write down one feature of each category.