PLTW: Principles of Biomedical
Sciences, National Exam Questions
and Answers 100% Pass
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
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,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 haploid
Mitosis: 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
Brittie Donald, All Rights Reserved © 2025 2
,~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 analysis
Forensic 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
Brittie Donald, All Rights Reserved © 2025 3
, ~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
Brittie Donald, All Rights Reserved © 2025 4
Sciences, National Exam Questions
and Answers 100% Pass
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
Brittie Donald, All Rights Reserved © 2025 1
,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 haploid
Mitosis: 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
Brittie Donald, All Rights Reserved © 2025 2
,~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 analysis
Forensic 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
Brittie Donald, All Rights Reserved © 2025 3
, ~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
Brittie Donald, All Rights Reserved © 2025 4
