Exploring DNA Profiling in Forensics

The video tutorial covers DNA fingerprinting, its role in forensics, and how DNA is collected and analyzed. It explains the structure of DNA, the concept of short tandem repeats (STRs), and how DNA profiling is used to identify individuals. The tutorial also discusses the CODIS database and the process of collecting DNA samples from suspects.

What is the primary use of DNA fingerprinting in forensics?

• To identify a suspect or victim

• To determine the gender of a suspect

• To measure the height of a suspect

• To determine the age of a suspect

What does DNA stand for?

• Deoxyribonucleic Acid

• Deoxyribonitrogen Acid

• Deoxyribose Nucleotide Acid

• Deoxyribose Nucleic Acid

Which of the following is NOT a component of a nucleotide?

• Phosphate group

• Sugar

• Protein

• Nitrogenous base

What are the four types of nucleotides found in DNA?

• Thymine, Cytosine, Adenine, Uracil

• Thymine, Cytosine, Adenine, Guanine

• Thymine, Cytosine, Adenine, Ribose

• Thymine, Cytosine, Guanine, Uracil

What does STR stand for in DNA profiling?

• Short Tandem Repeats

• Single Tandem Regions

• Short Tandem Regions

• Single Tandem Repeats

Which base pairs with Adenine in DNA?

• Thymine

• Uracil

• Guanine

• Cytosine

What mnemonic can help remember the base pairing rules?

• Apple in a tree, Car in a garden

• Ant in a tree, Car in a garden

• Apple in a tree, Car in a garage

• Ant in a tree, Car in a garage

What is the name of the national DNA database in the United States?

• NODIS

• SODIS

• CODIS

• RODIS

Which method is most commonly used to collect DNA from a suspect?

• Hair sample

• Blood sample

• Saliva sample

• Cheek swab

Who developed the DNA fingerprinting technique?

• James Watson

• Francis Crick

• Sir Alec Jeffries

• Rosalind Franklin