Exam 15: Forensic Serology

What type of packaging should NOT be used for biological evidence? Why? What type of packaging should be used instead for articles containing biological evidence?

Type AB blood contains:

Microcrystalline tests are far less sensitive than color tests for blood identification.

Which of the following statements is FALSE?

The presence of ________ indicates that a stain is seminal in nature.

Match the word in Column 1 to its definition in Column 2. Each answer can only be used once. A)A protein that destroys or inactivates a specific antigen B)An abnormally low sperm count C)The liquid that separates from the blood when a clot is formed D)The physical manifestation of a genetic trait such as shape, color, and blood type E)A structure in the cell nucleus composed of DNA, along which the genes are located F)A substance that stimulates the body to produce antibodies against it G)The basic unit of heredity, consisting of a DNA segment located on a chromosome H)The clumping together of red blood cells by the action of an antibody I)The male sex chromosome J)An enzyme found in high concentration in semen K)The female sex chromosome L)The fluid portion of unclotted blood M)Any of several alternative forms of a gene located at the same point on a particular pair of chromosomes N)The absence of sperm cells in semen O)The particular combination of genes present in the cells of an individual -Gene

When two different genes are inherited, the characteristic coded for by a recessive gene is expressed.

The amount of acid phosphatase in seminal fluid is ________ the amount of acid phosphatase in blood.

Match the word in Column 1 to its definition in Column 2. Each answer can only be used once. A)A protein that destroys or inactivates a specific antigen B)An abnormally low sperm count C)The liquid that separates from the blood when a clot is formed D)The physical manifestation of a genetic trait such as shape, color, and blood type E)A structure in the cell nucleus composed of DNA, along which the genes are located F)A substance that stimulates the body to produce antibodies against it G)The basic unit of heredity, consisting of a DNA segment located on a chromosome H)The clumping together of red blood cells by the action of an antibody I)The male sex chromosome J)An enzyme found in high concentration in semen K)The female sex chromosome L)The fluid portion of unclotted blood M)Any of several alternative forms of a gene located at the same point on a particular pair of chromosomes N)The absence of sperm cells in semen O)The particular combination of genes present in the cells of an individual -Chromosome

The best way to locate and characterize a ________ stain is to perform the acid phosphatase test.

________ is the study of antigen and serum antibody reactions.

Match the word in Column 1 to its definition in Column 2. Each answer can only be used once. A)A protein that destroys or inactivates a specific antigen B)An abnormally low sperm count C)The liquid that separates from the blood when a clot is formed D)The physical manifestation of a genetic trait such as shape, color, and blood type E)A structure in the cell nucleus composed of DNA, along which the genes are located F)A substance that stimulates the body to produce antibodies against it G)The basic unit of heredity, consisting of a DNA segment located on a chromosome H)The clumping together of red blood cells by the action of an antibody I)The male sex chromosome J)An enzyme found in high concentration in semen K)The female sex chromosome L)The fluid portion of unclotted blood M)Any of several alternative forms of a gene located at the same point on a particular pair of chromosomes N)The absence of sperm cells in semen O)The particular combination of genes present in the cells of an individual -Phenotype

One parent is type AB; the other parent is type O. A possible genotype for an offspring is:

The standard test used to determine whether blood is of human or animal origin is the ________ test.

To determine the human or non-human origin of a blood sample, the forensic scientist needs antibodies for each species of interest. Briefly describe how antibodies capable of reacting are produced in animals.

An individual who is type O has:

Chromosomes are the basic units of heredity.

The reaction of luminol with blood results in the production of color rather than light.

Two commonly used ________ tests for blood are the Kastle-Meyer test and the Hemastix test.

Spermatozoa can be difficult to locate because they are bound tightly to ________ materials.