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COLLEGE OF FOUNDATION STUDIES _____________________________________________________ BIF02: FOUNDATION BIOLOGY A EVOLUTIONARY PATTERNS QUESTION PAPER - SEMESTER I/2009 FACE TO FACE/PRINT _____________________________________________________ Time allowed three hours plus 10 minutes reading 100 marks (50% of final grade) TOTAL NUMBER OF PAGES: 5 MARK VALUE: 100 NUMBER OF SECTIONS: 1 NUMBER OF QUESTIONS: A – 20 Multiple Choice Questions NUMBER OF QUESTIONS TO Answer all the questions from Section A by BE ANSWERED circling the correct answer on the Multiple Choice grid provided in the Answer Booklet. COURSE TITLE: BIF02 FOUNDATION BIOLOGY A – EVOLUTIONARY PATTERNS Section A Multiple Choice 2 20 Marks Circle the best answer on the grid provided on page 3 of the Answer Booklet. 1. During which phase of meiosis are the chromosome tetrads lined up in the center of the cell? A. B. C. D. prophase I metaphase I anaphase II metaphase II 2. The genotypes of a husband and wife are IAIB x IAi. Among the blood types of their children, how many different genotypes and phenotypes are possible? A. B. C. D. 2 3 4 4 genotypes; genotypes; genotypes; genotypes; 3 4 4 3 phenotypes phenotypes phenotypes phenotypes 3. A fruit fly has two alleles of a gene for eye colour, but each of its sperm cells has only one. This illustrates which of the following terms? A. B. C. D. segregation linked genes pleiotropy polygeneic inheritance 4. A true breeding rabbit would be _________ for a certain characteristic. A. B. C. D. homozygous dominant homozygous recessive heterozygous either homozygous dominant or homozygous recessive 5. Which of the following molecules does not form part of a DNA? A. B. C. D. phosphate pyrimidine amino acid deoxyribose sugar COURSE TITLE: BIF02 FOUNDATION BIOLOGY A – EVOLUTIONARY PATTERNS 3 6. The bacterium Bacillus thuringensis can withstand heat, dryness and toxic chemicals that would kill most other bacteria. This indicates that it is probably able to form_______ A. B. C. D. endospores pseudopodia pili flagella 7. Which of the following terms can lead to microevolution? A. B. C. D. gene flow polymorphism paedomorphosis exaptation 8. The evolution of numerous species, such as Darwin’s finches, from a single ancestor is called _____________ A. B. C. D. adaptive radiation sympatric speciation geographical isolation gradualism 9. Which of the following is thought to have been the first step in the origin of life? A. B. C. D. cooperation among molecules formation of polypeptide spheres formation of organic monomers formation of organic polymers 10. Which of the following is not an evidence for the role of endosymbiosis in the origin of eukaryotes A. B. C. D. chloroplast have their own DNA inner membranes of a chloroplast is similar to prokaryotic membranes mitochondria reproduced by binary fission DNA in the eukaryotic nucleus codes for some enzymes in mitochondria COURSE TITLE: BIF02 FOUNDATION BIOLOGY A – EVOLUTIONARY PATTERNS 4 11. Which of the following organisms does not belong to Kingdom Protista A. green algae B. Paramecium C. yeast D. diatoms 12. An explorer found a plant that had roots, stems and leaves. It had no flowers but produced seeds. This plant belongs to which of the plant divisions below? A. angiosperm B. gymnosperm C. ferns D. bryophytes 13. The gametophyte stage of a plant life cycle is most conspicuous in which of the following plants? A. B. C. D. moss pine ferns roses 14. Lichen is a mutually beneficial connection between which two organisms? A. B. C. D. plant roots and fungi bacteria and fungi green alga and fungi protozoan and a plant 15. Which of the following describes the heterokaryotic phase in the life cycle of a typical fungus? A. B. C. D. fusion of two different types of nuclei a cell containing two different nuclei which has not fused. haploid spores zygosporangium COURSE TITLE: BIF02 FOUNDATION BIOLOGY A – EVOLUTIONARY PATTERNS 5 16. Which of the following animals does not have a body cavity? A. B. C. D. ant flukes mouse clam 17. A scientist discovers an animal with bilateral symmetry, a pseudocoelom, a tubular digestive system, and a thick multilayer cuticle. Which of the following groups does this animal most likely belong to? A. B. C. D. insecta nematoda annelida cnidaria 18. Which of the following are most numerous and successful on land? A. B. C. D. mollusks and chordates annelids and arthropods arthropods and chordates annelids and chordates 19. Fishes are most closely related to which of the following animals? A. B. C. D. Starfish Snail Earthworm octopus 20. Which of the following is not shared by birds and reptiles? A. B. C. D. endothermic metabolism amniotic eggs scales made up of keratin backbone of vertebrae COURSE TITLE: BIF02 FOUNDATION BIOLOGY A – EVOLUTIONARY PATTERNS 6