Criminalistics: Chapter 14 Forensic Serology
Unlock all answers in this set
Unlock answersquestion
1. Karl Landsteiner discovered that blood can be classified by its
answer
Type
question
2. True or False: No two individuals, except for identical twins, can be expected to have the same combination of blood types or antigens.
answer
False
question
3. is the fluid portion of unclotted blood
answer
Plasma
question
4. The liquid that separates from the blood when a clot is formed is called the
answer
Serum
question
5. transport oxygen from the lungs to the body tissues and carry carbon dioxide back to the lungs
answer
Red blood cells
question
6. On the surface of red blood cells are chemical substances called , which impart blood type characteristics to the cells
answer
Antigens
question
7. Type A individuals have antigens on the surface of their red blood cells
answer
A
question
8. Type O individuals have (both A and B, neither A nor B) antigens on their red blood cells
answer
Neither
question
9. The presence or absence of the and antigens on the red blood cells determines a person's blood type in the A-B-O system
answer
A; B
question
10. The D antigen is also known as the antigen.
answer
Rh
question
11. Serum contains proteins known as , which destroy or inactivate antigens
answer
Antibodies
question
12. An antibody reacts with (any, only a specific) antigen
answer
Only a specific
question
13. True or False: Agglutination describes the clumping together of red blood cells by the action of an antibody.
answer
True
question
14. Type B blood contains antigens and anti- antibodies
answer
B; A
question
15. Type AB blood has (both anti-A and anti-B, neither anti-A nor anti-B) antigens
answer
Neither
question
16. A drug-protein complex can be injected into an animal to form specific for that drug
answer
Antibodies
question
17. The term describes the study of antigen-antibody reactions
answer
Serology
question
18. Type AB blood (is, is not) agglutinated by both anti-A and anti-B serum
answer
Is
question
19. Type B red blood cells agglutinate when added to type (A, B) blood
answer
A
question
20. Type A red blood cells agglutinate when added to type (AB, O) blood
answer
O
question
21. The distribution of type A blood in the United States is approximately (42, 15) percent
answer
42%
question
22. The distribution of type AB blood in the United States is approximately (12, 3) percent
answer
3%
question
23. (All, Most) blood hemoglobin has peroxidase-like activity
answer
All
question
24. For many years, the most commonly used color test for identifying blood was the color test
answer
Benzidine
question
25. reagent reacts with blood, causing it to luminesce
answer
Luminol
question
26. Blood can be characterized as being of human origin by the test
answer
Precipitin
question
27. Antigens and antibodies (can, cannot) be induced to move toward each other under the influence of an electrical field
answer
Can
question
28. The basic unit of heredity is the .
answer
Gene
question
29. Genes are positioned on threadlike bodies called
answer
Chromosomes
question
30. All nucleated cells in the human body, except the reproductive cells, have pairs of chromosomes.
answer
23
question
31. The sex of an offspring is always determined by the (mother, father).
answer
Father
question
32. Genes that influence a given characteristic and are aligned with one another on a chromosome pair are known as .
answer
Alleles
question
33. When a pair of allelic genes is identical, the genes are said to be (homozygous, heterozygous).
answer
Sperm
question
34. The color test is used to locate and characterize seminal stains.
answer
Acid phosphatase test
question
35. Semen is unequivocally identified by the microscopic appearance of .
answer
Sperm
question
36. Males with a low sperm count have a condition known as (oligospermia, aspermia).
answer
Oligospermia
question
37. The protein is useful for the characterization of semen.
answer
P30
question
38. True or False: DNA may be transferred to an object through the medium of perspiration.
answer
True
question
39. True or False: Seminal constituents may remain in the vagina for up to six days after intercourse.
answer
True
question
1. An immunological assay technique used to detect the presence of minute quantities of drugs in blood and urine is .
answer
Enzyme-multiplied immunoassay technique (EMIT)
question
2. Antibodies designed to interact with a specific antigen site are (monoclonal, polyclonal).
answer
Monoclonal
question
3. True or False: Hybridoma cells are used to produce antigens designed to attack one and only one site on an antibody.
answer
True
question
4. A (phenotype, genotype) is an observable characteristic of an individual.
answer
Phenotype
question
5. The combination of genes present in the cells of an individual is called the .
answer
Genotype
question
6. A gene (will, will not) appear in a child when it is present in one of the parents.
answer
Will
question
7. A type B individual may have the genotype or the genotype .
answer
BB; BO
question
8. A type AB mother and type AB father will have offspring of what possible genotypes?
answer
A; B; AB
question
9. A type AB mother and type AB father will have offspring of what possible phenotypes?
answer
AA; BB; AB
