LOYALIST COLLEGIATE AND VOCATIONAL INSTITUTE
FINAL EXAMINATION
COURSE: GRADE 12 BIOLOGY,
CODE: SBI12U
DATE: Wednesday June 21, 2006
TEACHER: Dr. Christie
TIME: 8:30-11:00 am
LENGTH: 2.5 HOURS
THIS EXAM IS WORTH 30% OF YOUR FINAL GRADE IF YOU DID NOT
SUBMIT THE SCRAPBOOK ASSIGNMENT
OR
20% IF YOU SUBMITTED THE SCRAPBOOK ASSIGNMENT
WORTH 10% OF YOUR FINAL GRADE
INSTRUCTIONS
1. Take a deep breath and relax!
2. Read all of the questions carefully BEFORE you begin.
3. Please answer all of the exam questions on the foolscap
provided.
4. Write your answers in pen on ONLY one side of the foolscap.
5. PLEASE ENSURE THAT YOUR NAME IS ON EACH PIECE OF
FOOLSCAP.
6. Point form answers are acceptable.
7. Use the marking scheme provided to guide your answers.
Your exam is 3 pages long (including the cover page)
Short Answers
Big Picture Question
TOTAL
(45 marks)
(10 marks)
(55 marks)
GOOD LUCK!
Grade 12 Biology Exam
Short Answer: Please answer all of the following questions on the foolscap provided.
Molecular Genetics (11 marks)
1. What did Franklin, Crick, Watson and Wilkins “do” to explain the structure of DNA?
OR
How were PCR and RFLP discovered? (2 marks)
2. How does DNA replicate? steps? enzymes? leading and lagging strands
OR
What is translations? (2 marks)
3. What events took place that allowed the Human Genome Project to start and finish?
OR
What was the purpose and outcomes of the Human Genome Project? What did we learn
from this project? (2 marks)
4. How does your DNA determine how you behave? (based on what we discussed in class).
OR
Can we genetically engineer humans at the present time? Explain. (3 marks)
Evolution (10 marks)
5.
What is the difference between microevolution and macroevolution? (1 mark)
6.
What is important about the field of “evo-devo (evolutionary development)? (2 marks)
7. What selective pressure may have affected the one gene that codes for melanin (the
protein) responsible for skin colour? (1 mark)
8. How are new species formed according to evolutionary theory? (3 marks)
9. Is genetic variation in a population good? Why? (1 mark)
10. Why is the movie “The Lion King not accurate? (Focus on genetics and evolution in your
answer) (2 marks)
Genetic Engineering (3 marks)
11. List the risks and benefits from genetically engineered food. Include different
stakeholders in your answer.
OR
Are you concerned about our food supply? Why? (3 marks)
Homeostasis (3 marks)
12. What is homeostasis? (1 mark)
13. How should we study? Why? Provide details at the cellular level and relate your answer
to the figure from February. (2 marks)
Cellular Respiration (6 marks)
14. What are the steps and products of cellular respiration? Where does each stage occur?
(4 marks)
15. You are your enzymes. Comment. (2 marks)
Population Dynamics (8 marks)
16. The Canadian Boreal forest is being harvested to produce toilet paper (Globe and Mail,
June 9, 2006). How are transportation, energy, cities, fish and wildlife, agriculture, forestry
and water impacted by this issue? (3 marks)
17. How can we shift our focus from treatment to prevention?
OR
How can we get producers and consumers to pay the full price of their product (in terms of
life cycle)? (2 marks)
18. Can we achieve sustainability? Why? (3 marks)
Course Overview (4 marks)
18. What were FOUR of the most interesting and/or most important things that you learned in
this course? Why? (4 marks)
Big Picture Questions (10 marks)
Choose ONE of the following questions. Support your answer(s) using information from as
many units as possible. This question will be worth 10 marks.
1. Healthy lifestyle choices can be good for you and the environment. Discuss.
OR
2. Many herbicides and pesticides are carcinogenic. How can these products affect humans?
What are the environmental and evolutionary implications of using these products?
THANKS FOR A GREAT COURSE!
HAVE A WONDERFUL SUMMER!