DNA Evidence Collection and Preservation Quiz

Where is DNA most likely to be found on a weapon used in a crime?

• On the handle

• On the blade

• On the tip

• On the sheath

What is the first step in collecting DNA evidence from a crime scene?

• Packaging the evidence

• Documenting the evidence

• Wearing gloves

• Labeling the evidence

Which of the following is a common source of DNA on clothing found at a crime scene?

• Fabric dye

• Sweat

• Detergent residue

• Dust

What is the primary reason for using sterile tools when collecting DNA evidence?

• To save time

• To avoid contamination

• To reduce costs

• To increase efficiency

Which environmental condition can degrade DNA evidence the fastest?

• Cold temperatures

• Dry conditions

• High humidity

• Low light

What is a major challenge when collecting DNA from degraded samples?

• Lack of proper tools

• Insufficient training

• Low DNA yield

• Excessive DNA quantity

Which of the following is NOT a recommended method for preserving DNA evidence?

• Freezing

• Air drying

• Storing in plastic bags

• Refrigeration

What is the best practice for labeling DNA evidence collected at a crime scene?

• Using a pencil

• Using a permanent marker

• Using a ballpoint pen

• Using a highlighter

Which of the following is a potential source of contamination when collecting DNA evidence?

• Using new gloves

• Breathing over the evidence

• Using sterile swabs

• Wearing a face mask

What is the purpose of using a paper bag for storing DNA evidence?

• To prevent moisture buildup

• To save space

• To reduce weight

• To enhance visibility