CSI

What is the correct claim for this crime scene?

• Suspect 1 committed the crime.

• Suspect 2 committed the crime.

• Suspect 3 committed the crime.

• Suspect 4 commited the crime.

• Need more evidence to make a claim.

Answer explanation

The correct claim for this crime scene is that Suspect 2 committed the crime.

Tags

NGSS.HS-LS3-2

Pattern of DNA fragments obtained by examining a person's unique sequence of DNA pairs.

• DNA Fingerprint

• Allele

• Chromosome

Answer explanation

DNA fingerprinting is a technique that analyzes a person's unique sequence of DNA pairs, making it the correct choice.

Tags

NGSS.HS-LS3-2

This technique used to analyze DNA involves the

• synthesis of new DNA strands from subunits

• separation of DNA fragments based on size

• production of genetically engineered DNA molecules

• removal of defective genes from DNA

In gel electrophoresis, the smallest DNA fragment will appear

• closest to the starting wells

• farthest from the starting wells

• three quarters away from the starting wells

• it depends on how many fragments there are

To repeatedly copy a molecule such as DNA, usually until there are billions of copies present.

• Amplify

• Base Pairs

• Flanking Sequence

• DNA Fingerprint

Answer explanation

To repeatedly copy a molecule such as DNA, usually until there are billions of copies present. This process is called amplification.

The idea that with any contact between two items there will be transfer is known as _____

• physical evdience

• Locard's exchange principle

• Forensic exchange principle

• the law of forensics

The first officer arriving at a crime scene, after providing or obtaining medical assistance for the injured and making an arrest of suspects (if possible), should immediately:

• photograph the scene.

• search for evidence.

• make a rough sketch of the scene.

• secure the scene.

All evidence gathered at a crime scene must be

• labeled and documented

• analyzed in a scientific manner

• handled carefully so not to contaminate the specimen

• all of the above

Crime scene investigators

• document the crime scene and collect physical evidence

• conduct interviews

• issue search warrants

• prosecute suspects

What is the primary role of a Crime Scene Investigator (CSI)?

• To analyze DNA samples in the lab

• To document the crime scene and collect physical evidence

• To interrogate suspects

• To provide legal advice