biomed

link method is logical links between crime and activity.

zone method is searching in zones and searching best for buildings

spiral method is inward or outward spiral for no physical barriers

line method is along straight line at arms length for outdoor scenes.

Wheel method is from point and travel outward along many lines for small circular

Grid method is in a line vertical and horziontal for large outdoor.

At the scene must have data,location,time and temperature.

red blood cells are erthrocytes and carry oxygen

white blood cells are leukocytes and fight infections

platelets are thombocytes and clots blood

plasma is the liquid part of blood that hold everthing

3 types of presumptive test are leukocrystal,luminol,and kastle myers.

lct test reacts with hemoglobin in blood and turns purple

luminol test reacts with blood to glow blue

kastle meyer uses phenolphtalem and reacts with iron by hemoglobin to turn pink.

transfer blood spatter is blood that comes in cintact with a surface

spatters is when liquid blood travels through the air then lands

falling droplets is dropped from above and hits horzontal

force is when blood strickes at an angle with force

radial spatter is impact that sends blood droplets moving in air.

The steps of experimental desing are 1-indentify the question,2-make a prediction,3-desgin the experment,4-conduct the experiment,5-analyze data,6-comunicate findings.

the unversal donor is o

the unversal receiver is ab

postive control is the sample that always positive

negitive control is the sample thats always negative.

Type A blood is 42% of pop and has b antibodes and A antigens

Types B blood is 10% of pop has A antibodies and B antigens

Type AB blood is 4% of pop has no antibodies and has A and B antigens

Type O blood is 44% of pop has no antibodies and no antigens.

polygraphs measures heart and respiratory rate

the baseline of a polygraph is the persons normal levlels

the cuticle of the hair is the outside

the cortext is the center

the medulla is between the cortext and cuticle

minutia on a fingerprints are the tiny charateristics of the print

loop finger print is a loop that starts then curves and arches back

whorl finger print is a circle that spirals

arch finger print arches upwards then goes back down

tented arch arches upward in the center.

12-15 minutia must be matched to identify a fingerprint.

DNA is a double helix

dna stands for dexoyribonuclei acid

dna is negitivly charged

DNA provides the code for protiens

DNA is made up of necleotides

nucleotides are blocks of dna that have 5 carbons sugar covalenty boned to a nitrogen bond.

Adenine is a purine base

thymine is a pyrimidine base

guamine is a purine base

cytosine is a pyrimindine base

purines are bases with double ring

Pyrimidine are single rings

Gnomes is all the genes

potential sources of dna are bone,hair,body parts,clothing and finger prints,saliva and body fluids.

PCR copys dna to make more so that it can be analyized.

denature uses high temps that cuase dna to come apart

annealings is the primers binding it cools the temp down

extention brings that temp down to room temp

enzymes cut a dna molecules

blunt ends are dna cut straight in half

stickeys ends are cut jagered and uneven

Dna pices can be sepurated and compared by gel electrophoresis.

algor mortis body starts cooling

livor mortis is blood pulling and body turning white

clouding of corneas is eye turning white

decomposition is body breaking down

insect activity is flies