Questions from Crime and Investigation

Q: Many chemical substances have similar mass spectra fragmentation. A)

Many chemical substances have similar mass spectra fragmentation. A) True B) False 22) Gas chromatography cannot produce a specific identification of a chemical substance. A) True B) False 23) A mas...

Q: Alcohol is the most widely abused drug in Western countries.

Alcohol is the most widely abused drug in Western countries. A) True B) False 2) Alcohol tends to be distributed throughout the watery parts of the body. A) True B) False 3) The quantity and type of...

Q: An alcoholic disinfectant should be applied to a subject’s skin before drawing

An alcoholic disinfectant should be applied to a subject’s skin before drawing blood. A) True B) False 12) An airtight container best ensures the preservation of blood samples. A) True B) False 13)...

Q: The presence of trace elements is useful because they provide markers that

The presence of trace elements is useful because they provide markers that may establish the source of a material. A) True B) False 2) A continuous spectrum is most helpful in identifying a particula...

Q: Which of the following is NOT expected to show any evidential marks

Which of the following is NOT expected to show any evidential marks or impressions? A) A fired bullet B) A cartridge casing fired from a handgun C) A cartridge casing fired from a shotgun D) A shotgun...

Q: Gamma rays are a high-energy form of electromagnetic radiation.

Gamma rays are a high-energy form of electromagnetic radiation. A) True B) False 12) The major advantage of neutron activation analysis is that it provides a nondestructive method for identifying and...

Q: The minerals found in different soil samples cannot effectively be used to

The minerals found in different soil samples cannot effectively be used to determine whether or not they have the same origin. A) True B) False 22) Standard/reference soil samples should be collected...

Q: The blood factors belonging to the A-B-O system

The blood factors belonging to the A-B-O system are the most important for properly matching a donor and recipient for a transfusion. A) True B) False 2) People with type O blood have both A and B an...

Q: A heterozygous gene pair is made up of two different alleles while

A heterozygous gene pair is made up of two different alleles while a homozygous gene pair is made up of two similar alleles. A) True B) False 12) When two different genes are inherited, the character...

Q: James Watson and Francis Crick are credited with discovering the structure of

James Watson and Francis Crick are credited with discovering the structure of DNA. A) True B) False 2) The four bases on the DNA molecule are paired with A opposite T and G opposite C. A) True B) Fal...