Evolution PYQs Set 3 (PDF)

Set 3 of 3 · Questions 61-86 of 86

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Mere Teacher · Previous Year Questions NEET Biology · Evolution · Set 3 (Q61-86)
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61. $Which one of the following sets of items in the option 1 to 4 are correctly categorized with one exception in it? Items Category Exception$ (1) $Kangaroo, Koala, Wombat Australian marsupials Wombat$ (2) $Plasmodium, Cuscuta, Trypanosoma Protozoan parasites Cuscuta$ (3) $Typhoid, Pneumonia, Diphtheria Bacterial diseases Diphtheria$ (4) $UAA, UAG, UGA Stop codons UAG$ 62. $The factor that leads to Founder effect in a population is:$ (1) $Natural selection$ (2) $Genetic recombination$ (3) $Mutation$ (4) $Genetic drift$ 63. $In a species, the weight of newborn ranges from 2 to 5 kg . 97 % of the newborn with an average weight between 3 to 3.3 kg survive whereas 99 % of the infants born with weight from 2 to 2.5 kg or 4.5 to 5 kg die. Which type of selection process is taking place?$ (1) $Directional Selection$ (2) $Stabilising Selection$ (3) $Disruptive Selection$ (4) $Cyclical Selection$ 64. $The extinct human who lived 1,00,000 to 40,000 years ago, in Europe, Asia and parts of Africa, with short stature, heavy eye brows, retreating fore heads, large jaws with heavy teeth, stocky bodies, a lumbering gait and stooped posture was :-$ (1) $Cro-magnan humans$ (2) $Ramapithecus$ (3) $Homo habilis$ (4) $Neanderthal human$ 65. $The most apparent change during the evolutionary history of Homo sapiens is raced in$ (1) $Loss of body hair$ (2) $Walking upright$ (3) $Shortening of the jaws$ (4) $Remarkable increase in the brain size$ 66. $Natural selection where more individuals acquire specific character value other than the mean character value, leads to:$ (1) $Directional change$ (2) $Disruptive change$ (3) $Random change$ (4) $Stabilising change$ 67. $Which is the most common mechanism of genetic variation in the population of sexually reproducing organism?$ (1) $Chromosomal aberrations$ (2) $Genetic drift$ (3) $Recombination$ (4) $Transduction$ 68. $Panspermia, an idea that is still a favourite for some astronomers, means :$ (1) $Creation of life from dead and decaying matter$ (2) $Creation of life from chemicals$ (3) $Origin of sperm in human testes$ (4) $Transfer of spores as unit of life from other planets of Earth$ 69. $Among the human ancestors the brain size was more than 1000 CC in :-$ (1) $Homo neanderthalensis$ (2) $Homo erectus$ (3) $Ramapithecus$ (4) $Homo habilis$ 70. $Select the correct match regarding adaptive radiation of Australian marsupials corresponding to placental mammals.$ (1) $Tasmanian Wolf - Bobcat$ (2) $Marsupial mouse - Mole$ (3) $Spotted Cuscus - Lemur$ (4) $Numbat - Flying Squirrel$ 71. $What is common to whale, seal and shark ?$ (1) $Seasonal migration$ (2) $Thick subcutaneous fat$ (3) $Convergent envolution$ (4) $Homoiothermy$ 72. $Which one of the following statement is correct?$ (1) $Stem cells are specialized cells$ (2) $There is no evidence of the existence of gills during embryogenesis of mammals$ (3) $All plant and animal cells are totipotent$ (4) $Ontogeny repeats phylogeny$ 73. $Which one of the following options gives one correct example each of convergent evolution and divergent evolution? Convergent evolution Divergent evolution$ (1) $Eyes of octopus and mammals Bones of forelimbs of vertebrates$ (2) $Thorns of bougainvillea cucurbita Wings of butterflies and birds$ (3) $Bones of forelimbs if vertebrates Wings of butterflies and birds$ (4) $Thorns of bougainvillea and tendrils of cucurbita Eyes of octopus and mammals$ 74. $The process by which organisms with different evolutionary history evolve similar phenotypic adaptations in response to a common environmental challenge is called$ (1) $Natural selection$ (2) $Convergent evolution$ (3) $Non-random evolution$ (4) $Adaptive radiation$ 75. $The concept of chemical evolution is based on :-$ (1) $Crystallization of chemicals$ (2) $Interaction of water, air and clay under intense heat$ (3) $Effect of solar radiation on chemicals$ (4) $Possible origin of life by combination of chemicals under suitable environmental conditions$ 76. $Darwin's finches are a good example of$ (1) $Convergent evolution$ (2) $Industrial melanism,$ (3) $Connecting link$ (4) $Adaptive radiation$ 77. $Industrial melanism is an example of :$ (1) $Neo Lamarckism$ (2) $Neo Darwinism$ (3) $Natural selection$ (4) $Mutation$ 78. $Mammals were evolved from$ (1) $Sauropsids$ (2) $Synapsids$ (3) $Thecodonts$ (4) $Tyranosaurus$ 79. $Genetic drift operates is$ (1) $Large isolated population$ (2) $Non-reproductive population$ (3) $Slow reproductive population$ (4) $Small isolated population$ 80. $Sweet potato is homologous to$ (1) $Potato$ (2) $Colocasia$ (3) $Ginger$ (4) $Turnip$ 81. $Industrial melanism is an example of:$ (1) $Natural selection$ (2) $Mutation$ (3) $Leo Lamarckism$ (4) $Neo Darwinism$ 82. $Genetic drift operates in :-$ (1) $Non-reproductive population$ (2) $Slow reproductive population$ (3) $Small isolated population$ (4) $Large isolated population$ 83. $Analogous structures are a result of:$ (1) $Divergent evolution$ (2) $Convergent evolution$ (3) $Shared ancestry$ (4) $Stabilizing selection$ 84. $Genetic Drift occurs due to :$ (1) $Sudden population migration$ (2) $Continuous gene migration$ (3) $Mutation$ (4) $Natural selection$ 85. $Praying mantis is a good example of -$ (1) $Mullerian mimicry$ (2) $Warning colouration$ (3) $Social insects$ (4) $Camouflage$ 86. $Adaptive radiation refers to :-$ (1) $Adaptations due to Geographical isolation$ (2) $Evolution of different species from a common ancestor$ (3) $Migration of members of a species to different geographical areas$ (4) $Power of adaptation in an individual to a variety of environments$