biomed semester 1 final

location of dna


chargaff's rule

A=T and C=G

# of chromosomes in humans

46 (23 pairs)

charge of dna


Why does DNA migrate to the positive pole in electrophoresis?


relative rate at which RFLPs migrate in gel electrophoresis


why is dna profiling used in forensics?



highschool diploma or GED and formal emergency training. respond to 911 calls for assistance, CPR, bandaging wound, etc.

911 operator

high school diploma or GED. CPR certificate. notify police and call an ambulance in emergency situations. operate radio, telephone, computers and receive reports about crimes, fires, etc.

crime scene investigator

two year degree (bachelor's or master's) study in criminal justice. process crime scene for evidence, photography, labeling, writing reports, etc.

blood splatter analyst

bachelor's degree in forensics, microbiology. obtain blood samples, observe shapes of blood.


bachelor's degree in nutrition science and certification. assess patients nutritional and health needs, counsel on healthy eating habits, develop meal plans.

medical examiner

bachelor's degree, MD degree (doctor of medicine), 4-7 years internship and residency, USMLE (united states medical licensing examination). performs autopsies, inspect organs, tissue, body for cause of death.


bachelor's degree in forensics. designing experiments, testing hypotheses, analyze data, giving evidence in court, etc.

CSI technician

bachelor's degree in forensics, internship, certificate. collectin, processing, and analyzing fingerprints. collecting physical evidence, sketching crime scene.


helps determine the position of the body at time of death. blood pooling

algor mortis

the cooling of the body after death

Blood splatter analysis

study and analysis of bloodstains at a crime scene. used to draw conclusions about nature, timing, etc.

type a blood

A antigens and anti-B antibodies

type b blood

B antigen and anti-A antibody

type ab blood

A and B antigens, no antibodies, universal recepient

type o blood

universal donor, a and b antibodies

independent variable

the experimental factor that is manipulated; the variable whose effect is being studied.

dependent variable

the measurable effect, outcome, or response in which the research is interested.

ambient temperature

the temperature of the surrounding environment.


a part of the cell containing DNA and RNA and center of the cell

DNA (deoxyribonucleic acid)

special molecule that contains the genetic material of the organism

double helix

two strands of nucleotides wound about each other; structure of DNA




a five-carbon sugar that is a component of DNA nucleotides

phosphate group


nitrogenous base



the base that pairs with Thymine in DNA


the base that pairs with Cytosine in DNA


the base that pairs with Guanine with DNA




double-ring nitrogenous base; adenine and guanine


single-ring nitrogenous base
cytosine and thymine







dna profiling

the analysis of DNA samples to determine whether they came from the same individual

gel electrophoresis

The separation of nucleic acids or proteins, on the basis of their size and electrical charge, by measuring their rate of movement through an electrical field in a gel.

restriction enzymes (endonucleases)


restriction fragment length polymorphism


polymerase chain reaction (PCR)


3 components of a nucleotide

sugar, phosphate, base