BCH190 The Way We Work With Life
Study Guide Quiz 11, 2006
1. Who recognizes, identifies, individualizes and evaluates physical evidence using the methods of natural sciences in matters of legal significance?
2. In a bioweapons attack, there are the unique challenges with first response because
3. The CT CODIS Database collects two types of samples; (1) Convicted Offender Samples that include all Felony Convictions (since 03/01/04) and, (2) Forensic Unknowns that include any DNA profile from an evidentiary sample that does not match the victim or an elimination known. There are currently 10,793 offenders in CT Database and over 1500 offender samples are added per month. Currently there are how many felons on the CT database?
4. PCR is used in both plant genetics and forensics
5. A notorious attack that used bioweapons in Oregon in 1984 was perpetrated by a cult in an attempt to sway an upcoming election. Cult members were found to have contaminated commercial salad bars with what organism?
6. In the national debate about the use of forensic DNA analysis and the building of DNA databases (such as an all felon database v an all arrestee database of a general public database) there are two competing views. One view holds that DNA testing and the building of databases is a matter of public safety: DNA solves crimes; only criminals should fear DNA testing or databases. The opposing view holds that
7. The reasons that small pox is considered such a dangerous threat as a bioweapon include: its stability in aerosol form; infective dose low ~10-100 organisms; and, efficient person-to-person spread. The fact that a transmissible person can infect many other persons has created what possible threat since 9/11 that was not previously seriously considered?
8. There is a so-called Sentinel Six Infectious Agents that are considered Category A bioweapons which do not include:
9. There was a homicide in 1994. A plastic bag was found in the shallow grave of the victim with a bloody jacket and some trace hairs were recovered. What techniques would be best used to match the hairs to the suspect’s cat, snowball?
10. The principal mechanism of evolution, which includes two processes that operate together: chance variability and selection, is called:
11. The use of Ebola virus as a bioweapon is would be horrific and is nearly unthinkable. Which of the following statements about Ebola as a bioweapon is not true?
12. There was a double murder in Seattle in 1996 and preliminary investigation came up with two suspects. A couple had been torture and shot dead along with their pet dog. There was blood on one of the suspect’s clothing. The blood on the clothing could be best matched with that of the dog by doing what?
13. When samples are processed for forensic DNA analysis, they are not analyzing for ‘criminal genes’ but far from it the analysis is to non-coding DNA called ‘short tandem repeats’ or STRs. What are the odds of two people’s DNA matching one another given the nationally used 13 CODIS core of STR loci used by state and federal forensics experts?
14. Which of these items would not be a source for possible DNA forensic testing:
15. How does forensic testing help in a criminal investigation?
16. Evolution:
17. Darwin conceived that new species developed as populations with different forms and functions diverged and that evolution occurs:
18. The numbers of repeat offenses is one reason people support felon DNA databases. Collecting samples from offenders convicted of all felonies could help insure their DNA profiles are in the Database before the commit their first violent act. There is a 67% recidivism rate among convicted sex offenders and the average number of sexual assaults per offender is 8-13. As it turns out felons are often opportunistic and commit more than one type of crime. 52% of the offenders linked to sexual assaults and homicides by DNA Database matches had a prior conviction of what type of crime?
19. Why would analyzing the DNA of burglars reduce the violent crime rate, theoretically?
20. What important tool is used by trace evidence investigators of arson to determine what type of flammable source was used to start the fire?