According to criminal investigators, fingerprints follow 3 fundamental principles, except:
A fingerprint is an individual characteristic; no two people have been found with the exact same fingerprint pattern.
A fingerprint pattern will remain unchanged for the life of an individual; however, the print itself may change due to permanent scars and skin diseases.
Fingerprints can let an investigator determine the race of the individual they are seeking.
Fingerprints have general characteristic ridge patterns that allow them to be systematically identified.
Which is not a fingerprint class?
Whorls
Stripes
Loops
Arches
Dactyloscopy is...
the study of pterodactyls.
the study of fingerprint identification.
the study of blood.
the study of DNA
What class of fingerprint is this picture?
Whorl
Arch
Stripe
Loop
What is the study of the uniqueness of friction ridge structures and their use for personal identification?
Entomology
Forensics
Odontology
Ridgeology
Which of the following is not correct. Fingerprints...
are formed from oils secreted by the fingers
are formed from material on the fingers that is pressed upon a surface
are formed on any surface
are perspiration marks, along with oils that may have been picked up by touching the hairy portion of the body, that are transferred onto a surface
What 2 main components make up the composition of fingerprints?
Sweat and contaminants
Sweat and perspiration
Perspiration and blood
Blood and skin
What are 3 types of fingerprint impressions? (Check 3)
Latent
Plastic
Patent
Glass
Complete
Plastic fingerprints are...
fingerprints left on plastic surfaces.
bendable and easily lifted.
made of plastic.
actual indentations left in some soft materials such as clay, putty, wax, or dust.
Patent fingerprints are...
visible prints left on a smooth surface when blood, ink, or some other liquid comes into contact with the hands and is then transferred to the surface.
invisible prints left on a smooth surface when blood, ink, or some other liquid comes into contact with the hands and is then transferred to the surface.
visible prints left on a porous surface
invisible prints that must found with magnetic powder
Latent fingerprints are...
fingerprints that are visible to the naked eye and caused by the transfer of oils and other bodily secretions onto a surface.
fingerprints that are left behind in blood.
fingerprints that have been smeared and are no longer readable.
fingerprints that are invisible to the naked eye and caused by the transfer of oils and other bodily secretions onto a surface. They can be made visible by various different methods.
Fingerprinting and DNA fingerprinting are used to identify people because both are unique to individuals.
A DNA fingerprint shows...
all of the amino acids in an individual's body.
the speed of moving nucleic acids.
the polarity of nucleic acids.
the DNA base sequences in an individual's cells.
A method for the separation and analysis of macromolecules and their fragments, based on their size and charge is ...
Gas spectrometry
Chromatography
Gel Electrophoresis
Blood Typing
Polymerase Chain Reaction (PCR), is a technique used to:
Replicate DNA when only a small sample is found
Break down proteins into their original DNA bases
Synthesize amino acids into proteins at the ribosomes
Transport proteins across the plasma membrane
Who was at the crime scene?
Suspect B
No match
Suspect C
Suspect A
Where would we find the smallest DNA fragments, closer to the + end or the – end?
Positive end
Negative end
Both ends, equally
Where ever they started from
A technique used for separating mixtures into their component parts is...
DNA Fingerprinting
Latent Fingerprinting
Paint Analysis
The 4 uses of Chromatography are all of the following, except...
Analyze a substance and its constituents in a sample
Quantify the amount of a substance contained in a sample
Identify a substance
Purify a substance
Combine substances in a sample
Who might use chromatography to compare a sample found at crime scene to samples from suspects?
Law Enforcement
Hospital
Pharmaceutical Company
Environmental Agency
Manufacturing Plant
Who might use chromatography to determine the level of pollutants in the water supply?
What type of chromatography separates vaporized samples with a carrier gas (mobile phase) and a column composed of a liquid or of solid beads (stationary phase)?
Gas Chromatography
Liquid Chromatography
Paper Chromatography
Thin-Layer Chromatography
What type of chromatography separates dried liquid samples with a liquid solvent (mobile phase) and a paper strip (stationary phase)?
Thin-Layer Chromatrography
Why does the liquid move up the filter paper in paper chromatography?
Capillary Action
Solubility
Diffusion
Osmosis
Healthy blood contains which of the following? (Select all that apply)
Red blood cells
White blood cells
Platelets
Plasma
Poisons
Bacteria
Which of the following are part of the immune system and destroy infectious agents called pathogens?
White Blood Cells
Red Blood Cells
Which of the following is the yellowish liquid portion of blood that contains electrolytes, nutrients and vitamins, hormones, clotting factors, and proteins such as antibodies to fight infection?
Which of the following are clotting factors that are carried in the plasma; they clot together in a process called coagulation to seal a wound and prevent a loss of blood?
Which of the following are the most abundant cells in our blood; they are produced in the bone marrow and contain a protein called hemoglobin that carries oxygen to our cells?
What blood type is the Universal Donor?
A
B
AB
O
What blood type is the Universal Recipient?
If Mom is blood type A and Dad is blood type O, what type of blood will the baby have?
A or O
An _______________ if found on the red blood cell; whereas, the ________________ is produced to fight foreign substances.
antigen; antibody
antibody; antigen
An A- blood type can safely receive blood from which of the following?
A+
A-
AB+
AB-
O+
O-
People who have + blood contain a protein found in...
Gorillas
Rhesus Monkeys
Rhesus Beetles
Chimpanzees
People with + blood can receive both + and - blood safely.
What blood type is this?
B-
B+
Por favor espera - en proceso…