1. During DNA testing, the PCR (Polymerase Chain Reaction) procedure helps to:

a) purify the DNA source.
b) amplify the amount of DNA in a sample.
c) distinguish between DNA samples between relatives.
d) make visable the DNA sample.

2. Contrary to what you see on television court dramas, science is not yet able to extract identifiable DNA from a single strand of human hair.

True
False

3. A statistical approach based on Bayes' theorem helps an attorney to:

a) make statements on the probability of guilt or innocence of an individual.
b) provide a percentage occurrence of a DNA sample compared to the general population.
c) identify aberrant gene markers, such as those associated with disease, in an individual.
d) all of the above.

4. To be able to identify the perpetrators of violent crimes, many US states now have DNA profile databases comprised of individuals' information provided by state-run hospitals.

True
False