DNA Fingerprinting Notes Quiz

Which of the following best explains how DNA can be important to criminal investigations?

• It provides a unique identifier for individuals.

• It is easily altered.

• It is the same for all humans.

• It cannot be used in court.

Explain how crime-scene evidence is collected for DNA analysis. Choose the correct option to fill in the blank: Crime-scene evidence is collected by ________.

• burning the evidence

• preserving the evidence

• discarding the evidence

• ignoring the evidence

How do law-enforcement agencies compare new DNA evidence to existing DNA evidence?

• By using fingerprint analysis

• By comparing genetic markers

• By analyzing blood type

• By examining hair samples.

Describe the use of DNA profiling using mtDNA and Y STRs to help identify a person using the DNA of family members.

• mtDNA is used for maternal lineage, Y STRs for paternal lineage

• mtDNA is used for paternal lineage, Y STRs for maternal lineage

• Both mtDNA and Y STRs are used for maternal lineage

• Both mtDNA and Y STRs are used for paternal lineage

What is the term for a variant form of a gene?

• Chromosome

• Allele

• Genome

• Exon

The process of separating DNA fragments by size using an electric field is called ____.

• A) Electrophoresis

• B) PCR

• C) Karyotype

• D) Polymorphism

In which decade did DNA fingerprinting dramatically change forensic science?

• 1970s

• 1980s

• 1990s

• 2000s

In the early 1990s, the US military began collecting and storing blood samples of ______.

• Civilians

• Soldiers

• Scientists

• Law enforcement officers

In what year was the National DNA Index System (NDIS) established?

• 1995

• 1998

• 2000

• 2005

By 2014, CODIS had collected DNA profiles from how many offenders?

• 10 million

• 11.1 million

• 12 million

• 13.5 million