6.1.3 - DNA Profiling

Question 1

What Is DNA Profiling Used For?

Answer 1

Compare samples of DNA, collected from crime scenes, to samples of DNA from possible suspects.

Question 2

How Can DNA Profiles Be Created?
(4 Points)

Answer 2

~ Isolating a sample of DNA.

~ Each sample is amplified by using PCR.

~ Carry out gel electrophoresis, on the DNA, produced by the PCR.

~ Analyse the resulting pattern of DNA fragments.

Question 3

What Is The Use Of The Polymerase Chain Reaction (PCR)?

Answer 3

Used to produce many copies of a piece of DNA, by DNA amplification.

Question 4

Describe ‘DNA Amplification’ As Apart Of The PCR

Answer 4

~ Used to produce large quantities of specific fragments of DNA or RNA.

~ Produces billions of identical copies of the DNA or RNA sample, within a few hours.