DNA Extraction Process and Safety

The video tutorial guides viewers through the process of extracting DNA from cheek cells and creating a DNA necklace. It emphasizes safety precautions, preparation of solutions, and the step-by-step procedure for swabbing cheek cells, adding ethanol to visualize DNA, and assembling a DNA necklace. The tutorial concludes with instructions on securing the necklace with superglue.

What is the first safety measure to take before starting the DNA extraction process?

• Tie back long hair

• Wear a lab coat

• Wash your hands

• Put on safety goggles

What is the purpose of using a sterile swab in the DNA extraction process?

• To measure the extraction solution

• To collect cheek cells

• To mix the solutions

• To clean the apparatus

How much extraction solution is initially measured into the vial?

• 1 milliliter

• 2 milliliters

• 5 milliliters

• 10 milliliters

What is the role of ice-cold ethanol in the DNA extraction process?

• To dissolve the DNA

• To separate the DNA strands

• To sterilize the solution

• To color the solution

What should you do with the swab after collecting cheek cells?

• Rinse it with water

• Place it in the freezer

• Store it in a plastic bag

• Dispose of it in disinfectant

What is the first step in preparing to make a DNA necklace?

• Extract DNA strands

• Measure ethanol

• Clean all apparatus

• Collect cheek cells

What is included in the DNA necklace kit?

• A beaker and funnel

• A pipette and test tube

• A microscope and slides

• A glass file and rubber stopper

How are the DNA strands extracted from the solution?

• By shaking the vial

• By using a fresh dropper

• By heating the solution

• By using a magnet

What is applied to the vial to ensure the DNA necklace remains intact?

• Tape

• Paint

• Glue

• Wax

What is the final step in creating the DNA necklace?

• Polishing the glass file

• Adding a silver cap

• Heating the necklace

• Freezing the necklace