BIOLOGY 40S EXAM REVIEW 2015 EXAM DATE: Friday June 12th 9am MPR The following is an outline of topics you should review for the exam. The exam will consist of multiple choice, labeling diagrams, fill in the blanks, true false, short and long answer questions. This review is NOT ‘the exam’. Some topics may appear on the exam that are not on the review. Please refer back to your notes, assignments, labs, tests and quizzes to better prepare yourself! If you have a missing test or quiz check the ‘outbox’ at the back of my room You will have 4 review periods but these may be interrupted with provincial exams or other school events. My suggestion to you is that you aim to cover one unit per review period.Use your class notes to make summary notes for each question in the review. Go through your tests…If a topic was on a test it was probably important! Good luck studying and remember that I am here to help Students who complete this review in its entirety by MONDAY JUNE 8thmay earn up to 2% BONUS on their final exam. The review must be hand written. Reviews that are copied in ANY WAY from another student will be given a mark of zero. Answers to all questions will be found in your notes and assignments. EVOLUTION TERM 1 LAB: Owl Pellet Dissection LAB: Eye Dissection ZOO Project 1. Define the term evolution, explaining how evolution has led to biodiversity by altering populations and not individuals. 2. Define : gene pool, genome 3. Describe and explain the process of discovery that led Darwin to formulate his theory of evolution by natural selection (the voyage of the Beagle, his observations of South American fossils, the impact of the Galapagos Islands on his thinking, the work of other scientists) 4. Outline and explain the main points of Darwin’s theory of evolution by natural selection. Explain: a) b) c) d) e) f) Overproduction Competition Variation Adaptation Natural selection Speciation 5. Explain the difference between structural, physiological and behavioral adaptations. Provide examples for each. 6. Demonstrate, through examples, what the term “fittest” means in the phrase “survival of the fittest”. 7. Explain how natural selection leads to changes in populations. 8. Define the following: Industrial melanism, antibiotic resistant bacteria, Pesticide resistant insects 9. Describe how disruptive, stabilizing and directional selection act on variation. Provide an example of each. 10. Distinguish 11. Define a) b) c) d) e) f) between natural selection and artificial selection. and provide examples of: natural selection gene flow genetic drift non-random mating founder effect bottleneck effect 12. Describe and provide examples of how populations can become reproductively isolated through: a) b) c) d) e) geographic isolation niche differentiation altered behavior altered physiology pre-zygotic/post-zygotic isolating mechanisms 13. With the use of examples, differentiate between convergent evolution and divergent evolution. 14. Describe a) b) c) d) e) f) and provide examples of: Allopatric speciation vs. Sympatric speciation geographic isolation vs. reproductive isolation hybridization polymorphism polyploidy adaptive radiation. 15. Explain the difference between punctuated equilibrium and gradualism. 16. Explain the role that Zoo’s play in preserving biological diversity. 17. How do Zoo’s impact the evolution of a species? 18. What gene is linked to the evolution of the eye? 19. Provide several key reasons for the physiological differences in eye structure between the cow, pig and sheep eyes. 20. Would the differences in eye structure be the result of convergent or divergent evolution? Homologous or analogous structures? MOLECULAR GENETICS TERM 2 & 3 LAB: Gel Electrophoresis LAB: DNA Extraction Gene Technology Project 21. Outline significant scientific contributions/discoveries that led to our understanding of the structure and function of the DNA molecule. Include: a) Hershey & Chase b) Griffith c) Avery/McCarty/MacLeod d) Watson & Crick e) Rosalind Franklin f) Chargaff 22. Describe the structure of DNA (Deoxyribose sugar, phosphate group, nitrogenous bases, anti-parallel arrangement, 5’3’ ends). 23. DRAW the structure of DNA, include 4 nucleotides. DRAW the structure of RNA next to it highlighting major differences. 24. Describe the process of DNA replication from start to finish. Include: (template strand, semi-conservative replication, role of various enzymes, helicase, binding proteins, polymerase, ligase etc) 25. Compare DNA and RNA in terms of their structure, use and location in the cell. 26. Outline the steps involved in protein synthesis (mRNA, codon, amino acid, transcription, tRNA, anticodon, ribosome, translation etc.) 27. What amino acids are coded for by the following DNA strands? DNA: GCTTCCTACGCTGGAACCGCGCGATTCATCGCT mRNA: Amino Acids: DNA: AATGTACAGTACCCGAGTATAAATTCTACTCAT mRNA: Amino Acids: DNA: ATTACTGGTTACCCGAGTATACTTGCTTGAATT mRNA: Amino Acids: 28. Explain the following gene mutations: frameshift, dimer formation, point mutation (silent, missense, nonsense). 29. List some of the positive and negative aspects of gene mutations. 30. Provide 31. Explain some examples of mutagens. how restriction enzymes allow scientists to recombine DNA. Provide two examples of how scientists have used recombinant DNA technology. 32. Define: sticky end, blunt end, annealing, ligation 33. Be prepared to briefly explain the following types of biotechnology and provide an example of each: a) b) c) d) e) f) g) h) i) j) Bacterial Transformation Recombinant DNA Transgenic Organisms Genetically modified organisms Transgenic Bacteria Bioremediation Transgenic Plants Gene Pharming Saviour Siblings Human Genome Project KARYOTYPES 34. Explain what a karyotype is. Which chromosomes indicate gender? List the various disorders that can result from having multiple X chromosomes. 35. Identify monosomy and trisomy chromosome mutations from karyotypes. (Examples include: Down syndrome, Turner syndrome, Klinefelter syndrome) 36. Using the karyotype below identify if the individual is a boy or a girl. Do they contain any chromosome mutations? CHROMOSOME MUTATIONS & GENETIC TESTING 37. Explain the various ways that a fetus can be tested for a chromosome mutation. 38. State some of the ethical issues that may arise as a result of genetic testing for inherited conditions or disorders (such as downs syndrome) 39. Explain how chromosome mutations may arise during meiosis through non-disjunction. State some of the various chromosome mutations that may occur. GEL ELECTROPHORESIS 40. Explain the process of gel electrophoresis by drawing a simple diagram of the lab set up. What causes the DNA to move through the gel chamber? Review your gel electrophoresis lab questions. 41. What factors cause the DNA to move through the gel? 42. What are some applications of Gel Electorphoresis? 43. Using the diagram below find the two banding patterns that match. What does this suggest about the source of DNA? GENETICS & Heredity TERM 3 LAB: Bacterial Transformation MENDEL & LAWS OF INHERITANCE 44. Explain Mendel’s principles of inheritance. Include: a) Low of segregation b) Law of dominance c) Law of independent assortment TERMINOLOGY 45. What is the difference between homozygous, heterozygous, homozygous dominant vs. recessive? 46. What is the difference between genotype and phenotype? Genotypic and phenotypic ratios? 47. Define a) b) c) d) e) f) g) h) i) j) the following : P generation F1 generation F2 generation phenotypic ratio genotypic ratio dominant alleles recessive alleles purebred hybrid carrier PROBLEM SOLVING 48. Go through your assignments and solve at least ONE of each of the following types of problems. Include the problem with your answer. Be sure to include the genotypic and phenotypic ratio for each question. a) Monohybrid cross b) Dihybrid cross c) Polygenic Inheritance d) Co-dominance e) Incomplete Dominance f) Multiple alleles g) Sex linked traits SEX CHROMOSOMES & SEX LINKED TRAITS 49. Prove that there is always a 50/50 chance of having a boy or a girl as an offspring. Use a punnett square to justify your answer. 50. Explain what a sex linked trait is. Provide several examples of sex linked traits. 51. Go through your assignments/review and redo 3 sex linked trait problems. Check your answers. 52. List the various symbols and shading techniques used in a pedigree. 53. What is a pedigree? List the various symbols used in a pedigree. Be able to draw a pedigree based on given information (go over your genetics tests for examples). 54. Using the pedigree below identify the female carriers. Bacterial Transformation LAB 55. Be able to explain how the operon works. Know the different parts of an operon system (operator, repressor, inducer, regulator etc.) 56. Review the purpose of the bacterial transformation lab. In the lab what was the inducer that turned on the pGLO gene? Review the questions in your lab manual. 57. Using the diagram below, explain the set up in each of the following agar plates along with which dish is expected to glow. BIODIVERSITY TERM 3 LAB: Comparative Anatomy LAB 58. What characteristics are used to classify organisms into phyla? 59. What does cephalization mean? 60. Describe the MAIN characteristics of the three domains: a) Eubacteria b) Archaea c) Eukarya 61. Describe a) b) c) d) the MAIN characteristics of the four kingdoms of Eukarya: Fungi Plantae Animalia Protista 62. Be prepared to identify organisms and list characteristics of porifera, Cnidaria, Platyhelminthes, Nematoda, Mollusca, Annelida, Arthropoda, Echinodermata, Chordata. Provide an example of each. 63. Define a) b) c) d) e) f) and provide an example: Endoskeleton, exoskeleton, hydroskeleton Symmetrical, asymmetrical, radially symmetrical, bilaterally symmetrical Acoelomate, coelomate Polyp, medusa Vertebrate, invertebrate Segmentation, specialized segmentation 64. Which a) b) c) d) e) f) g) phyla do the following species fall into: Turtle Jellyfish Clam Squid Ant Bear Sponge PLEASE REVIEW THE FOLLOWING LABS: Bacterial Transformation: Be prepared to answer questions based on how the lab works. Which bacterial plates will grow antibiotic resistant bacteria? Which will glow and why? Gel Electrophoresis: Be able to correctly use banding patterns found in a gel to correctly identify an individual. Be able to explain how gel electrophoresis works. Owl Pellet Dissection: Be able to discuss MAJOR similarities or differences between the snake, frog and rat anatomy. Classification Lab: be able to classify any organism into the correct phyla when given key information or a photo. Comparative Anatomy Lab: Be prepared to answer questions similar to those found in the lab guide. LONG ANSWER It would be in your best interest to review the following questions carefully and prepare long answers (3/4 page foolscap) 1. State the MAJOR differences between homologous and analogous structures. Which type of structure is likely the result of divergent evolution? Convergent evolution? Provide an example of each type of structure (please use examples that we have discussed in class). 2. Outline the experiments that led Gregory Mendel to formulate his principles of inheritance. List and explain his three principles of inheritance. 3. Outline the significant contributions that led to the current understanding of the structure and function of DNA. Include contributions from the following scientists: Hershey & Chase, Rosalind Franklin, Avery McCarty & MacLeod, and Chargaff. 4. Outline Darwin’s voyages that led him to formulate his ‘Theory of Evolution by Natural Selection’. Include examples of evidence that Darwin found on his voyages. Include in your answer why Darwin was so hesitant to publish his work. 5. Structure of DNA - Draw four nucleotides (TWO pairs) arranged how they would be found in double stranded DNA. Label the bases (use the four different types), phosphates, sugars, carbons, hydrogen bonds, 5’ and 3’ ends. 6. Outline the steps involved in protein synthesis. Include: mRNA, codon, anticodon, amino acid, tRNA, ribosome, transcription, translation. Include a labeled diagram with your answer. 7. Any mistake or change in the DNA sequence is known as a mutation. Discuss the types of mutations that can occur in a cell to alter its DNA. Be sure to explain which mutations are most dangerous to a species and why. Also, explain why low level mutations, such as those that occur spontaneously, may be advantageous to a species. Please include examples of mutations we have discussed in class in your explanation to add clarity to your answer. 8. Explain how a bacterial cell can modify their own DNA. How may this be useful to scientists? Be detailed in your description of the process. 9. Explain how someone could test DNA evidence at a crime scene for genetic similarity to various suspect DNA. What other applications does this technology have? Be detailed in your description of the process.