DNA Fingerprinting

Which strand is complementary to ACTGCGA in DNA?

• TGACGCT

• ACTGCGA

• CAGTATC

• GTCATAG

Which statement best describes restriction enzymes?

• A type of DNA

• Molecular scissors that cut DNA at specific points

• Molecular glue that holds DNA together

• Gel used in gel electrophoresis

Ultimately what makes each individual unique?

• The type of sugar in their DNA

• The number of phosphate groups in their DNA

• The order of nitrogenous bases

• The amount of adenine present in their DNA

During gel electrophoresis, fragments of DNA are separated based on....

• type of sugar

• size (number of nitrogen bases)

• type of phosphate

• all of the above

DNA fingerprinting/profiling works because -

• Most genes are dominant

• All organisms contain DNA

• 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

• Counts the genes in DNA

• Separates DNA based on fragment size

• Replicates DNA

Which suspect DNA matches that of the DNA found at the crime scene?

• Suspect 1

• Suspect 2

• Suspect 3

• Suspect 4

Which two molecules form the sides (backbone) of the DNA "ladder"?

• Deoxyribose sugar and adenines

• Deoxyribose sugar and hydrogen bonds

• Deoxyribose sugar and the nuclei

• Deoxyribose sugar and phosphate groups

What applications can gel electrophoresis be used for?

• Parental Testing

• Criminal Investigations

• Sequence Endangered Species DNA

• All of the above

Which DNA fragment bands move faster and farther in a gel electrophoresis? 

• there is no way to tell 
• the largest ones
• the smallest ones
• none of these