Chapter 15 Flashcards
The fluid portion of unclotted blood
Plasma
The molecules that carry the body`s genetic information
DNA
The liquid that seperates from the blood when a clot is formed
Serum
A substence, usually a protein, that stimulates the body to produce antibodies against it
Antigen
A protein in the blood serum that destroys or inactivates a specific antigen
antibody
Blood serum that contains specific antibodies.
antiserum
The clumping together of red blood cells by the action of an antibody
agglutination
An enzyme found in high concentrations in semen
Acid phosphatase
An abnormally low sperm count
oligospermia
The absence of sperm; sterility in males
Aspermia
The female sex chromosome
X-chromosome
The male sex chromosome
Y-chromosome
The physical location of a gene on a chromosome
Locus
Any of several alternative forms of a gene located at the same point on a particular pair of chromosome
Allele
Having 2 identical allelic genes on two corresponding positions on a pair of chromosomes
Homozygous
Having 2 different allelic genes on two corresponding positions on a pair of chromosomes
Heterozygous
A repeating unit of DNA consisting of 1 of 4 bases attached to a phosphate- sugar group
nucleotide
A technique for replicating or copying a portion of a DNA strand outside a living cell
Polymerase chain reaction (PCR)
A region of a DNA molecule that contains short segments of 3-7 repeating base pairs
Short tandem repeats(STR)
A technique that simultaneously detects more than one DNA marker in a single analysis
Multiplexing
Small structures outside the nucleus that supply energy to a cell
Mitochondria
The outer layer of skin cells
epithelial cell
DNA from skin cells transferred onto the surface of an object by simple contact
touch DNA
Fewer than 18 DNA-bearing cells
low copy number
AN unstained object adjacent to an area on which biological material has been deposited
Substrate control
Cells from the inner cheek
buccal cells
