DNA Profiling

Who invented the DNA fingerprinting method?

• Francis Henry Galton

• Sir Alec Jeffreys

• Dr. Alec May

• Edmond Locard

_____ are non-coding segments of DNA that are most useful to Forensic Scientists as evidence.

• tandems

• exons

• introns

• histones

____ are repeating base sequences that are unique to individuals and useful in Forensic Science.

• polymorphisms

• exons

• bands

• tandems

What technique is used to make copies of segments of DNA for analysis?

• Polymerase Chain Reaction

• Gel Electrophoresis

• DNA Fingerprinting

• Short Tandem Repeats

DNA fragments can be sorted according to their size by the technique of ____.

• polymorphisms

• gel electrophoresis

• polymerase chain reaction

• short tandem repeats

Which of the following are ways to prevent contamination of DNA collected from the crime scene? Mark all that apply!

• gloves

• avoid coughing or sneezing

• freeze the evidence, if needed

• use plastic bags to store the evidence

Encoded DNA; the portion of DNA with directions to build molecules is called:

•  Exons      
• Polymorphism
• Primers
• Introns 

The segment of a chromosome that contains the information used to produce a protein is a(n):

• Intron      
• DNA probe
• Gene
• Exon

Most human cells have how many chromosomes?

• 23
• 24
• 36
• 46

Mitochondrial DNA is

• inherited only from the mother 
• in the shape of a triple helix 
• inherited only from the father
• not useful in forensic science