(Dna & Blood Evidence) Test Review (Page 4 of 8) in pdf

15. What is the main job of a forensic serologist? ____________________________________________

_______________________________________________________________________________

16. How can analysts determine the freshness of a blood sample? ______________________________

_______________________________________________________________________________

17. Name and BRIEFLY describe two presumptive tests used to determine if a sample is actually blood.

a. ____________________________________________________________________________

____________________________________________________________________________

b. ____________________________________________________________________________

____________________________________________________________________________

18. Why is blood the most common, well-known, and perhaps the most important piece of evidence in

forensics? ______________________________________________________________________

_______________________________________________________________________________

19. Finding someone’s blood genotype is usually more relevant to ( criminal | civil ) cases. Describe an

example of an instance when determining blood genotype would be used to resolve a court case:

_______________________________________________________________________________

20. A person has type B- blood. *Remember to consider their Rh type in the following questions.*

a. Which antigens would be found on their blood cells? ___________________________

b. Which blood types their blood be donated to? _______________________________

c. Which antibodies would be found in this person’s bloodstream? _________________________

d. Which blood types could this person receive? ________________________________

21.

Label the important features of the blood drop at right.

Which feature of the blood drop would indicate

direction of travel? _______________________

22. Identify the direction of travel for the blood drop below. ____________________________________

(Dna & Blood Evidence) Test Review Page 4