PBS- 1.1 Review for Biomed

a person who has died

grid, line, zone, spiral

the available body of facts or information indicating whether a belief or proposition is true or valid.

Test that measures respiration, blood pressure, and perspiration while person is asked a series of questions; outcome is a diagnostic opinion about honesty.

A measure of cardiac activity usually expressed as the number of beats per minute.

Beat of the heart as felt through the walls of the arteries.

number of breaths per minute

small but measurable amounts of physical or biological material found at a crime scene

Middle, thickest portion of a hair shaft

Outermost layer of hair; consisting of a single, overlapping layer of transparent, scale-like cells that look like shingles on a roof.

innermost portion of a hair shaft

recognizable pattern of ridges in a fingerprint

characteristics of ridge patterns

The application of scientific knowledge to questions of civil and criminal law.

erythrocytes

leukocytes

thrombocytes

transport oxygen and carbon dioxide

fight infections

blood clotting

mostly made of water, transports materials in blood, allows for diffusion into/out of blood

iron-containing protein in red blood cells that carries oxygen for delivery to cells

Group expected to have a positive result, allowing the researcher to show that the experimental set up was capable of producing results.

Control group where conditions produce a negative outcome. Negative control groups help identify outside influences which may be present that were not accounted for when the procedure was created.

test that presumes the presence of the questioned substance; also called a screening test.

a test that specifically identifies one substance

Proteins found on the erythrocyte cell surface. (A, B, and Rh) are used to differentiate blood groups.

Proteins that attach to antigens, keeping them from harming the body

a proposed explanation made on the basis of limited evidence as a starting point for further investigation.

The experimental factor that is manipulated by the scientist

what is measured or observed in an experiment

The basic unit of structure and function in living things

An organelle that contains genetic material

protein molecules around which DNA is tightly coiled in chromatin

A double-stranded, helical nucleic acid molecule capable of replicating and determining the inherited structure of a cell's proteins.

The scientific study of heredity

A segment of DNA on a chromosome that codes for a specific (protein) trait

All the genetic information in an organism; all of an organism's chromosomes.

threadlike structures made of DNA molecules that contain the genes

Any of the pairs formed between complimentary bases in the two nucleotide chains of DNA, such as A-T and C-G (DNA)

Contain a nucleus and other organelles that are bound by membranes.

A type of cell lacking a membrane-enclosed nucleus and membrane-enclosed organelles; found only in the domains Bacteria and Archaea.

A tiny cell structure that carries out a specific function within the cell

monomer of nucleic acids made up of a 5-carbon sugar, a phosphate group, and a nitrogenous base

a visual representation of a person's unique DNA sequence

Enzymes that recognize specific double-stranded DNA sequences and cuts it

technique that allows molecular biologists to make many copies of a particular gene

specific sequence where a restriction enzyme will cut (palindrome)

A technique in which restriction enzymes are used to cut DNA at specific sequences.

Procedure used to separate and analyze DNA fragments by placing a mixture of DNA fragments at one end of a porous gel and applying an electrical voltage to the gel

Differences in DNA sequence that can result in different patterns on an agarose gel

set of known DNA fragments with different sizes in base pairs or kilo bases. these DNA fragments are separated and visualized as DNA bands on a gel. used to determine the size and quantity of DNA fragments

lines on the agarose gel once stained

hole in a agarose gel where DNA is inserted

a jelly-like slab used to separate molecules on the basis of molecular weight

instrument used to accurately withdraw and dispense very small amounts of reagents in the microliter range, which is necessary for DNA

A description of how close a measurement is to the true value of the quantity measured.

a measure of how close a series of measurements are to one another