DNA Fingerprinting

What is the structure of DNA?

• double helix
• ladder
• twisted helix
• double ladder

Tags

NGSS.HS-LS1-1

Why type of evidence is DNA?

• Class
• Trace
• Individual
• Direct

Tags

NGSS.HS-LS3-1

What process is used to determine if two DNA samples match?

• Gel Electrophoresis
• PCR
• Population Genetics
• Agar Plating

What are the four bases that make up DNA?

• AUCG
• ABCD
• ATCG
• ATCU

DNA fingerprinting works because

• Most genes are dominant
• All organisms contain RNA
• The most important genes are different among most people
• No two people, except identical twins, have exactly the same DNA 

What is the purpose of gel electrophoresis?

• helps cut DNA
• count the genes in DNA
• separates DNA based on size
• allows for an exact replicated organism

Why do the fragments of DNA in gel electrophoresis travel away from the negative electrode?

• DNA is negatively charged so attracted to the positive end of the unit
• DNA is positively charged to attracted to the negative end of the unit
• the agarose gel in negatively charged
• the agarose gel is positively charged

Tags

NGSS.HS-PS2-5

In gel electrophoresis, the largest DNA fragment will appear

• closest to the starting wells
• farthest from the starting wells
• three quarters away from the starting wells
• it depends on how many fragments there are

Which is the primary purpose of using restriction enzymes in gel electrophoresis?

• It allows the strands of DNA to be cut into various lengths for testing
• It restricts the number of base pairs that can be tested in a sample
• It makes the testing simpler by moving the strands into the gel faster
• It charges the DNA strands

Biological evidence is used in forensics for DNA identification purposes. Biological evidence includes ...

• blood

• saliva

• semen

• all of these