FREE AND STUDY GAMES ABOUT FORENSICS FINAL 1

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FREE AND STUDY GAMES ABOUT FORENSICS FINAL 1

EXAM QUESTIONS

Actual Qs and Ans Expert-Verified Explanation

This Exam contains:

-Guarantee passing score -75 Questions and Answers -format set of multiple-choice -Expert-Verified Explanation Question 1: STRs normally consist of repeating sequences of:

Answer:

3-7

Question 2: Which is the most widely used low explosive?

Answer:

Black powder, smokeless powder Question 3: Which type(s) of screening and confirmation tests are used for analyzing evidence of explosives?

Answer:

TLC, MC/GC, Color spot tests Question 4: A gene pair made up of two similar alleles-for example, AA and BB-is said to be:

Answer:

Homozygous

Question 5: What is the major advantage of using the vapor concentration technique with gas chromatography?

Answer:

High sensitivity for detecting volatile residues Question 6: What is the concentration at which a vapor-to-fuel mixture in the air is capable of burning?

Answer:

Flammable range Question 7: Complex chromatographic accelerant patterns can be simplified by:

Answer:

Mass spec Question 8: Most explosives can be recovered from debris for future study by being rinsed with:

Answer:

Acetone Question 9: The clumping together of red blood cells by the action of an antibody is known as:

Answer:

Agglutination Question 10: Which instrumentation is considered the most sensitive and reliable for detecting and characterizing flammable residues?

Answer:

GC

Question 11: The D antigen is also known as the ________ antigen.

Answer:

Rh

Question 12: What is true about monoclonal antibodies?

Answer:

Medicines version of Magic Bullet, produced using multiplying blood cancer cells

Question 13: Note that suspect B has only one band in his lane. This is most likely an indication

that:

Answer:

Homozygous Question 14: A typical STR DNA type emanating from a single individual shows a ________ band pattern.

Answer:

Two Question 15: When investigators search a fire scene, the first focus must be on:

Answer:

Finding origin of fire Question 16: DNA is a(n):

Answer:

Polymer

Question 17: Which is a chemical used to synthesize the explosive TATP?

Answer:

Hydrogen peroxide Question 18: The amount of DNA material required for STR analysis is ________ the amount of DNA required for RFLP analysis.

Answer:

Less than Question 19: Type AB blood contains:

Answer:

Both A and B antigens Question 20: The presence of ________ indicates that a stain is seminal in nature

Answer:

p30

Question 21: Hydrocarbon accelerants can be detected by:

Answer:

Portable detector and dogs

Question 22: Which of the following statements is false?

Answer:

Kastle-meyer test is used to determine if blood is human Question 23: Telltale signs of arson include:

Answer:

burn patter, separate points of origin, presence of containers

Question 24: Which nitrogenous base is NOT found in DNA?

Answer:

Uracil Question 25: If blood is found to have both A and B antigens it is typed as:

Answer:

AB Question 26: People with type O blood have both A and B antigens on their red blood cells.

Answer:

False Question 27: Which is a homemade explosive that has been used by terrorist organizations in the Middle East?

Answer:

TATP

Question 28: Which of the following depicts correct base-pairing in DNA?

Answer:

T-A