Why is a “DNA extraction” performed prior to any other form of testing? And, is it required? Question 2 options:

1)

Yes it is required; it is used to estimate the quality and quantity of a DNA sample

2)

No it is not required; It breaks the cell membranes and can degrade DNA

3)

Yes it is required; it is how we determine if the DNA profile is male or female

4)

Yes it is required; It breaks open the cells and releases DNA

5)

No it is not required in all cases; it is only used to remove a biological stain from clothing