PLTW: Principles of Biomedical Sciences, National Exam Questions And Answers Graded A+

Prophase I - crossing-over occurs between tetrads Metaphase I - Paired homologous chromosomes line up across the center of the cell Anaphase I - Spindle fibers pull each homologous chromosome pair toward an opposite end of the cell Telophase - A nuclear membrane forms around each cluster of chromosomes and cytokinesis follows, forming two new cells Prophase II - Chromosomes consist of two chromatids, but they do not pair to form tetrads Telophase II - A nuclear membrane forms around each cluster of chromosomes and cytokinesis follows, forming four new cells. Mitosis: Form of reproduction - Asexual Meiosis: Form of reproduction - first stage in sexual Mitosis: Number of daughter cells - 2 Meiosis : Number of daughter cells - 4 Mitosis: change in chromsome number - No change; stays diploid Meiosis: change in chromsome number - cut in half to haploidMitosis: Number of cell divisions - 1 Meiosis: Number of cell divisions - 2 Mitosis: Difference in alleles between parent cell and daughter cells - none Meiosis: Difference in alleles between parent cell and daughter cells - Each of the four daughter cells is genetically different from the parent 911 Operator - referring calls to appropriate law enforcementagencies/emergency medical services, determining the response requirements and prioritizing situation and dispatching units according to a set of established procedures ~High school diploma or equivalent answering inquiries EMT - Care for the sick or injured in emergency medical settings respond to emergency calls ~high school diploma or equivalent and cardiopulmonary resuscitation (CPR) certification postsecondary non-degree award Crime Scene Investigator - Collect and examine evidence present at crime scenes, Observe and look for evidence ~Bachelor's degree in science, Complete a Police Academy Blood Spatter Analyst - examine the location and shape of blood drops, stains, puddles and pools. Testify in court. Determine: The type of weapon used, direction of travel of a victim or suspect, trajectory of a projectile, number of wounds a victim may have suffered How events unfolded during a violent crime ~degree in criminal justice, forensic science. Biology, anatomy, criminology, constitutional law and statistical analysisForensic DNA Analyst - Observe DNA samples found at the scene of a crime and compare it to potential suspects in order to accurately identify an entity. They can work in crime labs or private labs. ~bachelor's degree in molecular biology, genetics or forensic science Medical Examiner - Investigates deaths and injuries, performs post-modem,testifies in court ~MD, Bachelor's Degree, Residency in pathology Toxicologist - Develop new and better ways to determine the potential harmful effects of chemical and physical agents and the amount (dosage) that will cause these effects"(2) Study probability that specific particles will be a threat to human health ~Major in biology and chemistry, physics, computer science, statistics and mathematics (including calculus) bachelor's degree in toxicology Morgue Assistant - Help prepare deceased before and after examination, for instruction and research ~Highs school grad, Knowledge of human anatomy Biochemist - Study chemical principles of biological processes using tools such as electron microscopes. Some biochemists simply supply research for the world of science and some apply this research to the work force such as a pharmaceutical company. ~Bachelors, masters or doctorate in biochemistry. PhD is required for applied research. Food Scientist or Technologist - Use chemistry, microbiology, engineering, and other sciences to study the principles underlying the processing of foods, analyze food content, apply knowledge to determine way of producing healthier foods ~Associates degrees in biology, animal science, or a related field