Blood Type
What blood type is considered the universal donor?
O-negative
What does DNA stand for?
Deoxyribonucleic acid.
What is rigor mortis?
The stiffening of muscles after death.
What is toxicology?
The field of science that studies the effects of chemicals, such as drugs (over-the-counter, prescription, and illicit), alcohol, poisons, metals, and gases on the human body
What is histology?
The study of tissues at the microscopic level.
Which blood type can receive blood from any donor?
AB-positive
What are the building blocks of DNA?
Nucleotides.
Which temperature is used to estimate time of death?
Body temperature (typically measured rectally).
Which field of toxicology focuses on the detection of drugs, alcohol, and poisons in legal investigations?
Forensic toxicology
Which type of tissue covers body surfaces and forms glands?
Epithelial tissue.
Which antigens are found on the surface of type A blood?
A antigens
Which part of the DNA carries genetic information?
The sequence of nitrogenous bases (A, T, C, G).
What is the body’s average cooling rate after time of death?
The body cools at a known rate (about 1.5°F per hour) after death.
What is the pathing of the digestive tract in order?
Oral cavity, esophagus, stomach, small intestine, large intestine
What are the four main types of tissue in the human body?
Epithelial, connective, muscle, and nervous tissue.
Why is understanding blood spatter important in forensic science?
It can provide vital information about the events that occurred during a violent crime
What is PCR and what is its purpose?
Polymerase chain reaction; used to amplify (make more) DNA.
What is the name of the process used to estimate time of death by examining the eyes?
Clouding of the cornea.
True or False: All substances can be toxic if taken in large enough amounts.
True
What is the nervous system hierarchy in order?
Cell, Tissue, Organ, Organ system.
If a person with blood type B is given blood type A, what would likely happen?
The immune system would attack the foreign blood cells, causing a transfusion reaction.
What are the four bases of DNA and how do they pair?
Adenine pairs with thymine; cytosine pairs with guanine.
What role does livor mortis play in determining the time of death?
The pooling of blood after death can help estimate the position of the body at the time of death.
What does a forensic chemist test?
Nonbiological samples, such as powders, pills, and other substances, to determine their identity, components, or concentration
What are the 4 main parts of the brain?
Frontal lobe, Temporal lobe, Parietal lobe and Occipital lobe.