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Aje Taiwo Tutor 1. 2. FSC101/DBIY101: Introductory Biology Organisms are united by the fact that they undergo (a) Revolution (b) Evolution (c) Predation (d) Regeneration Cell death is (a) Anthophagy (c) Apoptosis (b) Exocytosis (d) Atopposis 3. All living things maintain a high degree (a) Form and complexity (b) Order and complexity (c) Form and function (d) Order and family 4. A detectable change in internal or external environment of an organism is called (a) Taxis (b) response (c) Stimulus (d) reflex 5. 6. Sex of a child is determined by (a) Female parent (b) Temperature during copulation (c) Maternal grandparent (d) Male parent Follicle stimulating hormone (FSH) (a) stimulates the seminiferous tubules to produce sperm (b) is secreted by females but not males (c) secretion is controlled by gonadotrophic releasing hormone (d) Both A and C are correct 7. Which pathway is regarded as the “terminal pathway of metabolism” (a) Kreb’s cycle (b) Calvin cycle (c) Glycolysis (d) Hexose shunt 8. Who among the following produced evidence that nucleic acid is the carrier of genetic information and not protein? (a) Robert Brown (b) Oswald Avery (c) Watson David (d) Rudolf Virchow 9. 10. 11. The ribosomes for protein synthesis are manufactured by the (a) Nucleus (b) Nucleoplasm (c) Nucleolus (d) Cytoplasm 12. Which of the following is not true about protein synthesis in prokaryotes (a) 70S ribosomes (b) 80S ribosomes (c) No endoplasmic reticulum (d) None of the above 13. During photosynthesis, NADPH acts as? (a) Energy supplier (b) Reducing agent (c) Oxidizing agent (d) None of the above 14. Carotenoid look yellow because they? (a) reflect yellow light (b) absorb yellow light (c) reflect green light (d) absorb green light 15. Method of feeding of pin mould, mucor on stale bread is (a) Holophytic (b) Saprophytic (c) Parasitic (d) Autotrophic 16. All these devices except _________ make self pollination impossible (a) Dichogamy (b) Unisexuality (c) Homogamy (d) Self sterility 17. All members of the same species found in a particular community are called (a) Niche (b) ecosystem (c) populations (d) family Nos 18-26 Shade “A” if statement is true or “D” if false Which of the following is not associated with prokaryotes (a) mesosomes (b) nucleoid (c) plasmids (d) nucleolus Which of the following is NOT associated with male reproductive physiology (a) Testosterone (b) Prolactin (c) Interstitial hormone (d) Follicle stimulating hormone Mock checks readiness for the real exam. Thursday 8th March, 2012. 1 18. Fungi are autotrophic 19. Kingdom is a taxon 20. Thymine occurs in both DNA and RNA 21. Ornithomimus is a primitive bird 22. Members of kingdom monera lack nervous system 23. Ontogeny does not recapitulate phylogeny 24. Heritable variation is a consequence of meiosis Join us for the Revision Classes. Aje Taiwo Tutor FSC101/DBIY101: Introductory Biology Thursday 8th March, 2012. (c) competition 25. Sickle cell anaemia occurs because one out of 146 amino acids in the α-chain of haemoglobin has been changed 26. In test for partial and total colour blindness, individuals affected with total colour blindness cannot read any numbers in all the plates 27. The clumping of red blood cells when treated with the appropriate anti-serum is (a) agglutination (b) aggluttination (c) aglutinnation (d) aglutination 28. Natural selection favours (a) strongest individuals (b) those most reproductively fit (c) victors in survival struggle (d) most variable genotypes 29. Extinction in evolution (a) gives rise to new types by natural selection (b) is a consequence of mutations (c) is inherently unavoidable (d) none of the above 30. Binomial nomenclature has two parts (a) genus and order (b) genus and species (c) genera and species (d) order and species 31. Apart from energy production, mitochondria are also involved in (a) Apoptosis (b) Apoposis (c) Apoptisos (d) Apotosis A. 2 32. Nos 32-36 B. 3 C. 4 38. Consider the components of a food chain Producers → Herbivores → Carnivores → Top carnivores. Which level contains most energy? (a) producers (b) herbivores (c) carnivores (d) top carnivores 39. Sexual reproduction leads to (a) genetic variation (b) genetic stability (c) genetic instability (d) A and C 40. This organism is not bisexual (a) paramecium (b) obelia (c) Balanus (d) Rabbit 41. The gametophyte generation is dominant in (a) coniferophyta (b) Filicinophyta (c) Bryophyta (d) Angiospermata 42. How is the primary consumer like a secondary consumer? (a) both pass on less energy to the next trophic level than they received (b) both pass on same amount of energy to next trophic level (c) both tend to be herbivores that produce nutrients for plants (d) both are able to convert organic compounds to ATP without loss of energy 43. Which of these combinations is for a eukaryotic ribosome? (a) 60S + 40S (b) 70S + 30S (c) 50S + 30S (d) 60S + 30S 44. The nuclear envelope is (a) Smooth (b) Perforated (c) Flagellated (d) None of the above D. 6 Organisms may be classified into maximum of ____ kingdoms Nos 45-48 A. Turner syndrome B. Klinefeller syndrome C. Down syndrome D. None of the above 33. The maximum number of eons is _____ 34. There are ____ eras 45. XXX 35. There are ____ basic laws of inheritance 46. Trisomy-21 36. There are ____ antigens in the ABO blood group 47. XXY 37. Territoriality occurs as a result of (a) predation (b) parasitism 48. XO Mock checks readiness for the real exam. (d) fighting 6 Join us for the Revision Classes. Aje Taiwo Tutor A. Eocene C. Cretaceous FSC101/DBIY101: Introductory Biology Nos 49-52 B. Carboniferous C. Pleistocene 49. Origin of placental mammals 50. Age of amphibians 51. Angiosperms were dominant 52. Extinction of dinosaurs 64. The following syndromes lead to 47 chromosomes except (a) Down syndrome (b) Klinefelter syndrome (c) Edward syndrome (d) Turner syndrome 65. Edward syndrome (a) Trisomy-21 with 45 autosomes (b) Trisomy-21 with 47 autosomes (c) Trisomy-18 with 45 autosomes (d) Trisomy-18 with 47 autosomes 66. The following are sub-stages of prophase I except (a) Leptotene (b) Zygotene (c) Chiasmatene (d) Pachytene 67. Patau syndrome is also known as (a) Trisomy 21 (b) Trisomy 13 (c) Trisomy 18 (d) Trisomy 10 68. Which of the following is NOT a constituent of DNA (a) Durine (b) Uracil (c) Phosphate (d) Deoxyribose Nos 52-56 A. Homo sapiens sapiens B. Homo antecessor C. Homo erectus D. Australopithecus boisei 53. Found in Olduvai 54. First hominid out of tropics 55. Formerly zinjanthropus 56. 800,000 years ago Thursday 8th March, 2012. Nos 69-73 Answer True (A) or False (D) Nos 57-60 A. O-type B. A-type C. B-type D. AB-type 69. Karyokinesis occurs before cytokinesis in binary fission 57. Universal recipient 70. The sporophyte generation is dominant in pteridophyte 58. Has no antigen 71. Sporophyte plant stays on gametophyte in pteridophyte but is independent in Bryophyte 59. Can donate blood to only one blood type 72. 60. Has no antibody Louis Pasteur proved that life does not arrive spontaneously 61. In asexual form of reproduction known as fission, the parental body divides into (a) Two equal parts (b) More or less equal parts (c) two less equal parts (d) divides only once 73. In hot climate, plants close their stomata in order to increase carbon dioxide concentration 74. The lifecycle that has 2 separate generations that alternate between them is called (a) Haplontic (b) Diplontic (c) Haplodiplontic (d) Diplophase 75. Glandular cells have prominent (a) mitochondria (b) nuclei (c) golgi (d) peroxisomes 76. Synthesis of cholesterol and bile acids take place in (a) RER (b) SER (c) peroxisomes (d) none of the above 62. 63. Bryophytes have (a) no conducting tissues (c) strengthening tissues (b) conducting tissues (d) all of the above Which of these is the least productive to the most productive communities (a) ocean, rocky beach, temperate forest, estuary (b) agricultural land, tundra, tropical rainforest, desert (c) lakes and streams, tropical rainforest, open ocean (d) agricultural land, lakes and streams, open ocean Mock checks readiness for the real exam. 7 Join us for the Revision Classes. Aje Taiwo Tutor FSC101/DBIY101: Introductory Biology Thursday 8th March, 2012. 77. The microtubules radiating from the centriole during prophase in the animal cell form the (a) kinetochore (b) phragmoplast (c) aster (d) centromere (a) occupy the same niche (b) eat different foods and occupy different ranges (c) spend much time fighting each other (d) A and C are correct 78. Chondroblast cells produce (a) Bone (b) Cartilage (c) Connective tissue (d) red blood Nos 87-94 A. Period B. Eon C. Epoch 79. 80. 81. 82. 83. 84. 85. Two sister chromatids are held together at (a) aster (b) centromere (c) centrosome (d) phragmoplast Which of these events identifies mitosis in a plant cell? (a) cell plate formation (b) absence of aster (c) only A (d) A and B Microtubular fibres are attached to the chromosome at the (a) centrosome (b) centromere (c) kinetochore (d) phragmoplast Which of these is not a function of peroxisomes (a) site for hydrogen peroxide synthesis (b) site for hydrogen peroxide degradation (c) synthesis of very long chain fatty acids (d) interkinesis 87. Archaeozoic 88. Phanerozoic 89. Holoscene 90. Triasic 91. Palaezoic 92. Silurian 93. Myocene 94. Cretaceous A. Class When does crossing over take place in meoisis (a) Zygotene (b) Chiasmatene (c) Pachytene (d) Diakinesis Nos 95-97 B. Phylum C. Order 95. Osteichthytes 96. Eubacteria 97. Sirenia Meiotic chromosomes are held together at several points called (a) centromere (b) kinetochore (c) chiasma (d) chiasmata Nos 98-100 A. Tertiary B. Devonian D. Carboniferous In a population of 1500, if birthrate is 42% per year and death rate is 27% per year. The rate of natural increase will be (a) 42% (b) 27% (c) 1% (d) 2.7% D. Era D. Kingdom C. Cretaceous 98. Age of amphibians 99. Primates appeared at the beginning of the ______ 100. Origin of placental mammals 86. Six species of monkeys are found in a tropical forest, most likely, they Mock checks readiness for the real exam. 8 Join us for the Revision Classes.