Evidence collected at a crime scene can only be used to associate an individual to being present at the scene of the crime and is never used to eliminate someone from being present at the crime scene. 

The microscopic examination of hair evidence can reveal all of the following information except:

The identification of seminal fluid is confirmed by the presence of seminal acid phosphatase and the presence of prostate-specific antigen in the sample. 

The four basic building blocks of DNA include all of the following except:

In humans, the nucleus of cells contains DNA which is arranged into how many pairs of chromosomes?

Short tandem repeats (STRs) are a type of length polymorphism. 

The liquid portion of blood is known as plasma. 

Lab tests to determine if blood is human include the Precipitin Ring Test and the Ouchterlony Double Diffusion Test. 

All of the following are true about the polymerase chain reaction (PCR) used in forensic DNA analysis except:

Passive bloodstains are formed only under the influence of gravity.