DNA Fingerprinting

Mr. Andersen discusses DNA fingerprinting, also known as DNA profiling, which was pioneered by Alec Jeffries in 1984. The process involves analyzing genetic variability, particularly short tandem repeats (STRs), to identify individuals. DNA profiling is used in forensics and paternity testing. The video explains the process of DNA profiling, including the use of gel electrophoresis, and highlights ethical concerns about DNA databases and privacy.

Who is credited with the development of DNA fingerprinting?

• Rosalind Franklin

• Alec Jeffries

• Francis Crick

• James Watson

What percentage of human DNA is identical across all individuals?

• 50%

• 99.9%

• 75%

• 100%

What are short tandem repeats (STRs) used for in DNA fingerprinting?

• To measure DNA length

• To identify gene mutations

• To determine genetic variability

• To sequence the entire genome

Which technique is used to separate DNA fragments during DNA fingerprinting?

• Gel electrophoresis

• X-ray crystallography

• DNA sequencing

• Polymerase chain reaction

How many different sections are typically used in DNA profiling to ensure accuracy?

• 10

• 8

• 13

• 5

In what fields is DNA fingerprinting commonly applied?

• Astrophysics

• Environmental science

• Agriculture and food safety

• Forensics and paternity testing

What is a potential ethical concern regarding DNA databases?

• They are difficult to access

• They are not accurate enough

• They can reveal personal genetic information

• They are too expensive to maintain