DNA Review

DNA evidence can determine all of the following except

• where a person has lived

• family relationships

• to find someone innocent of a crime

• to prove someone was at a crime scene

DNA fingerprinting relies on the fact that

• most genes are different between people

• no two people, except identical twins, have the same DNA

• most genes are dominant

• DNA fingerprints from different people look very similar

Which tool is used to make millions of copies of small samples of DNA?

• electrophoresis

• cytosine

• cotton swabs

• PCR

A pairs with

• A

• T

• G

• C

C pairs with

• A

• T

• C

• G

Mitochondrial DNA is passed down from the

• brother

• sister

• mother

• father

If one strand says GGTCA what will the other DNA strand say?

• CCAGT

• GGTCA

• GGTATG

• ACTGG

When someone's DNA is found at a crime scene you can be 100% certain they committed the crime.

• true

• false

Whose DNA matches the blood DNA at the crime scene?

• victim

• husband

• suspect

DNA can be found in

• cells

• blood

• hair

• all of these