Correct!

Which of the following is NOT a potential source of DNA for forensic analysis?

A.	hair roots
B.	red blood cells Although blood is an excellent source of DNA, the DNA does not come from the red blood cells, as these cells have no nuclei. Rather, the DNA comes chiefly from white blood cells in the blood.
C.	epithelial cells in urine
D.	muscle tissue
E.	saliva

The Biology Project
University of Arizona
Tuesday, August 20, 1996
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