U3Bcrimescene
.pdf
School
Abbotsford Virtual School**We aren't endorsed by this school
Course
BIOLOGY 11
Subject
Biology
Date
Dec 21, 2024
Pages
6
Uploaded by ChancellorKnowledge15903
Biology: DNA 2021-07-15Page 1of 5Inquiry Question Can you use DNA from the scene of a crime to help determine who did it? Name: ___________________________ Date: ____________ You are a detective for the Vancouver Police Department in the year 2028. You are at the scene of a crime where a criminal single-handedly robbed a casino, then shot and killed 3 men working at the casino. Although there were eye witnesses to the crime, the robber was wearing gloves, oversized coveralls, and a mask that covered his/her entire head. No one is able to give any kind of a description of the perpetrator. Luckily, being the ingenious detective that you are, you find a little spot of the criminal's blood on a shard of glass where he/she cut themself as he/she made his/her escape through a broken window. You take the blood to the lab so tests can be run. Fortunately, thanks to years of research, scientists have now figured out which genes in DNA code for every human characteristic.
Biology: DNA 2021-07-15Page 2of 5Instructions Read through the lessons on DNA in their entirety.ooooResearch step 1 and answer the question asked in paragraph form. Complete steps 2 through 5 and submit the assignment to the project drop box. You must cite your sources of information. Check out these websites for information on citing sources: http://www.plagiarism.org/citing-sources/whats-a-citation/ http://www.wikihow.com/Sample/MLA-Citation-List This Project will be graded according to the Marking Guide at the end of this document. Project Submission: Submit your word document to the project drop box Step 1: The sample of blood from the crime scene was quite small and the lab was only able to isolate a small amount of DNA. Forensic scientists will have to amplify the amount of DNAavailable to be sure there is enough to test. Research the method used by forensic scientists to accomplish this task and identify the steps involved as well as a description of each step. Answer in paragraph form. Use at least two sources of information and cite them properly. Paragraph:
Biology: DNA 2021-07-15Page 3of 5Step 2:After performing the method described in Step 1 above, you end up with the resulting DNA sequence from the crime scene. Translate the DNA into mRNA: DNA TACGATGAAGGCAATCAAGGGTTCTCCTGTCAAAGTACATTATAGGCAGACTTAGCGGTTGGAATGAAAATC MRNA___________________________________________________________________________________________Step 3:Translate the mRNA sequence into an amino acid sequence and enter it in order in the table below. Highlight the START codon and the STOP codon. See the instructions on the top of the next page for information on how to fill in the ‘Characteristic’ boxes.
Biology: DNA 2021-07-15Page 4of 5Follow the steps below and use the codon chart to help you come up with a police sketch of the perpetrator who committed this crime. Methionine-leucine-proline = male Methionine-leucine-leucine = female Valine-proline-proline-lysine = green eyes Proline-leucine-valine-proline = blue eyes Proline-lysine-proline-proline = brown eyes Lysine-arginine-threonine-valine-serine-serine = blond hair Lysine-arginine-threonine-valine-serine-cystine = black hair Lysine-arginine-threonine-valine-serine-valine = brown hair Asparagine-isoleucine-arginine = curly hair Asparagine-asparagine-isoleucine = straight hair Leucine-arginine-glutamate-arginine = big hook nose Leucine-asparagine-arginine-glutamine = small straight nose Leucine-asparagine-asparagine-glutamine = medium crooked nose Proline-tyrosine-tyrosine-(stop) = small ears Proline-proline-tyrosine-(stop) = medium ears Proline-tyrosine-phenylalanine-(stop) = big ears Amino Acid: Characteristic: Amino Acid: Characteristic: 1. 14. 2. 15. 3. 16. 4. 17. 5.18. 6. 19. 7. 20. 8. 21. 9. 22. 10. 23. 11. 24. 12. 13.
Biology: DNA 2021-07-15Page 5of 5Step 4:On a separate sheet of paper, draw a sketch of what the criminal looks like based on your amino acid sequence. Use colored pencils and make a good drawing! Step 5:Cite sources below and submit the diagram and the rest of the assignment to the drop box in the courseas a single pdf.*note that this is the only project that does not require a separate presentation, the worksheets can be submitted as a final project. To earn extending marks you will want to compile this information into a formal presentation.Sources:
Biology: DNA 2021-07-15Page 5of 5