Question

1. Differential DNA extraction of samples:

A. Always results in obtaining all the sperm dna from the sample

B. Results in the separation of sperm and non-sperm cells

C. Is used for removing contamination from forensic evidence

D. Results in isolation of intact epithelial cells

2. Important steps in sample preservation are:

A. Stored in water so it does not dry out

B. Drying and frozen

C. Stored in airtight plastic bags

D. Drying and room temperature