Q: Police investigating the scene of a sexual assault recover a large blanket
Police investigating the scene of a sexual assault recover a large blanket that they believe may contain useful physical evidence. They take it to the laboratory of forensic serologist Scott Alden, as...
See AnswerQ: Criminalist Cathy Richards is collecting evidence from the victim of a sexual
Criminalist Cathy Richards is collecting evidence from the victim of a sexual assault. She places a sheet on the floor, asks the victim to disrobe, and places the clothing in a paper bag. After collec...
See AnswerQ: The following sequence of bases is located on one strand of a
The following sequence of bases is located on one strand of a DNA molecule: C–G–A–A–T–C–G–C–A–A–T–C–G–A–C–C–T–G List the sequence of bases that will form complementary pairs on the other strand of the...
See AnswerQ: Police discover a badly decomposed body buried in an area where a
Police discover a badly decomposed body buried in an area where a man disappeared some years before. The case was never solved, nor was the victim’s body ever recovered. As the lead investigator, you...
See AnswerQ: You are a forensic scientist performing DNA typing on a blood sample
You are a forensic scientist performing DNA typing on a blood sample sent to your laboratory. While performing an STR analysis on the sample, you notice a four-peak pattern. What conclusion should you...
See AnswerQ: A woman reports being mugged by a masked assailant, whom she
A woman reports being mugged by a masked assailant, whom she scratched on the arm during a brief struggle. The victim is not sure whether the attacker was male or female. DNA analysts extract and ampl...
See AnswerQ: At a crime scene, you encounter each of the following items
At a crime scene, you encounter each of the following items. For each item, indicate the potential sources of DNA. The five possible choices are saliva, skin cells, sweat, blood, and semen.
See AnswerQ: Indicate which method of heat transfer is most likely to be responsible
Indicate which method of heat transfer is most likely to be responsible for each of the following: a. Ignition of papers in the room where a fire starts b. Ignition of electrical wiring in a room adjo...
See AnswerQ: It is late August in Houston, Texas, and you are
It is late August in Houston, Texas, and you are investigating a fire that occurred at a facility that stores motor oils and other lubricating oils. A witness points out a man who allegedly ran from t...
See AnswerQ: Criminalist Mick Mickelson is collecting evidence from a fire scene. He
Criminalist Mick Mickelson is collecting evidence from a fire scene. He gathers about a quart of ash and soot debris from several rooms surrounding the point of origin. He stores the debris in a new,...
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