1.4.2 DNA Fingerprinting

How similar are two human's DNA?

• 100% the same

• 99.9% the same

• 65% the same

• no similarities between two people

Tags

NGSS.HS-LS3-1

How different are two people's DNA?

• 99.9% different

• 73% different

• 0.1% different

• no differences between two people

Which sample would be the MOST useful in identifying a person?

• a soil sample

• a hair sample

• a page of a book

• a piece of wood

Which is NOT a good sample to use when identifying someone?

• drop of blood sample

• a fingernail sample

• a hair sample

• a plant sample

What should a scientist do if they have a small amount of DNA they want to analyze?

• Run gel electrophoresis

• Do polymerase chain reaction (PCR)

• Use restriction enzymes

• Make a karyotype

What could a scientist use after a polymerase chain reaction (PCR) ?

• karyotype

• collection sample

• restriction enzyme

• gel electrophoresis results

What could a scientist use after they have done polymerase chain reaction (PCR) AND restriction enzymes?

• karyotype

• collection sample

• restriction enzyme

• run gel electrophoresis

Which process can turn one piece of DNA into 200 pieces of DNA?

• karyotype

• gel electrophoresis

• polymerase chain reaction

• restriction enzymes

What does PCR do?

• makes copies of a sample DNA

• separate DNA fragments according to size

• takes a picture of someone's chromosome

• cuts DNA into having sticky ends

Which process is shown in the picture?

• using restriction enzymes

• gel electrophoresis

• polymerase chain reaction (PCR)

• karyotype