Biomedical Research
A single cell became you, and nobody told it how. Everything here is one investigation of that fact: the puzzles that teach the logic, the year-long case that puts it on a real patient, and the simulations where you run the experiments and earn the right to make a claim.
The science is real. It comes from a craniofacial research lab at Case Western Reserve University, where the model animal is the mouse. That is who is on the seal.
Start here
Learn the logic first
Ten everyday puzzles that teach how a cell decides what to become, before any of the vocabulary. You write the rule in your own words, and the game only accepts rules you could test.
The case
Craniofacial Research Track
A year-long investigation of one patient, Baby Mateo, born with a cleft of the lip and palate. Four courses, four lenses, one question: what happened, and when?
The research trackFrom the developing face to genes, public databases, and gene correction. The HOSA research project, with callouts in every class.Open →The Baby Mateo caseThe patient, the timeline, and the evidence you are handed. You are not told the diagnosis. You reach it.Open →Field guideHow to read a paper, keep a notebook, and tell a claim from a result. The habits, in plain English.Open →Track glossaryEvery term in the track, defined at a level you can actually use, with a picture where a picture helps.Open →
The simulations
Run the experiments
Where the logic meets real measurement. You choose the tools, you run the comparison, and the claim you are allowed to make is capped by the evidence you actually collected.
Class, or Identity?An FBI expert told a jury a hair matched. The man served 28 years. One of the hairs in that case came from a dog.Open →Histology: The Four Tissue TypesEvery complex organ in the human body is built from just four primary tissue types.Open →Is That Blood, or Barbecue Sauce?A stain could be blood or it could be sauce. Run the presumptive test, watch for the pink, and learn why a positive is a screen, not an ID.Open →It Was Inert in the BeakerClean is the one thing a body never is, so a medicine that works perfectly in a clean beaker has only proven it works somewhere your body will never be.Open →It Worked in the Cup. Now What?It cleaned the cup. That does not mean it can clean the lake.Open →Medicine and Poison Are the Same MoleculeThe same pill that kills your headache can kill your liver. The only thing that changes is how many.Open →Read the Count. Name What It Cannot See.Sort a scrambled karyotype and count the chromosomes, then find out why a normal count can still hide a translocation and can never see a single-gene change.Open →Read the Family. Name the Pattern, and Name the Limit.Read a three-generation pedigree for high cholesterol and work out the inheritance, then learn why the pattern infers a gene it can never actually read.Open →Sheep Heart Gross Anatomy: DissectionThe heart is a mechanical pump, and its physical structure tells you exactly how hard each part has to work.Open →The Bellyache: Close It HonestlyEvery year, American doctors make about 12,000,000 outpatient diagnostic errors. The disease in this case touches about 250,000 people a year. The mistake…Open →The Glove That FailedYou are braced for something exotic. What has actually made microbiology students sick is ordinary food poisoning, picked up off a teaching bench, and the…Open →The Hour Nobody Wrote DownAlmost everyone blames the last thing they ate. For the most common cause of foodborne illness in this country, the meal that did it was one to two days…Open →What Does a Normal Reading Mean?A normal reading does not mean well. It means normal, right now, for the average person, and a body can work hard to look exactly that normal.Open →What Is the Match Allowed to Mean?The same DNA test that frees innocent people can also jail one, because a gel can tell you two patterns match and still cannot tell you the DNA belonged…Open →Who Is on the Plate?A wrestler swears a spider bit him. Streak a wound swab for isolation, wait overnight for real, then read what grew and find out how little it proves.Open →Whose DNA, and Does It Even Matter?Shake someone's hand, and your DNA can end up on a knife you never touched.Open →A Sieve Is Not a KidneyYour kidneys filter almost 50 gallons of fluid a day and hand back 99 percent of it, sugar and all. A sieve only knows how to lose things.Open →Counting a Virus by Plaque AssayDilute a virus stock, count the clear plaques it punches in a lawn of cells, and back-calculate the titer, then face what that number does and does not count.Open →Cow Eye Dissection: Anatomy of VisionYour eye is a living camera, built to capture light and start the process of translation.Open →Fracture Analysis: What a Shadow Can and Cannot Tell YouAbout 4 in 10 boys break a bone before they turn 16. And a plain X-ray can call a bone normal after roughly a third of its mineral is already gone.Open →Getting Nervous: Sheep Brain DissectionThe mammalian brain is a 3D architecture where specific structures perform highly specific tasks. To understand how it works, you have to take it apart.Open →Heart-Lung Pluck: Thoracic Anatomy in SituThe heart and lungs are one wired system, built to trade gases as fast as possible.Open →Hello Kidney: The Urinalysis StoryA simple fluid holds the secrets of the body's balance. Urinalysis is the oldest, cheapest, and most revealing diagnostic tool in medicine.Open →How Many Is Too Many?Four standards bodies look at the same plate and publish three different answers about which colonies you are allowed to count.Open →It Takes Guts: Enzyme ActionChemical Digestion: The Molecular ScissorsOpen →One Fiber Twitches. A Muscle Doesn't.Add ATP to a dead muscle fiber and it contracts, which proves the machinery runs on fuel. The same slide can never show you the thing you care about most:…Open →Read the Band PatternCut a patient DNA and read the band pattern on a gel, then learn why one restriction site is a keyhole, not a window into the whole gene.Open →The Angle Is Not the AnswerThe angle said my knee was ready. My knee wasn't.Open →The Dose You Never TestedIn Cleveland in 2025, 937 young children tested with too much lead in their blood. Four of them were anywhere near the level that looks like an emergency.…Open →The Muscle Quit, or Did the Brain?Your hand gave out. The brain may have pulled it, not the muscle. And the number cannot tell you which.Open →The Track Shows What, Not WhoWatch a worm cross a plate and you see what its brain did, not which cell did it. Every concussion sideline test has the same blind spot.Open →What a Normal Breathing Test Cannot Tell YouA breathing test can read perfectly normal while something is still wrong, because a spirometer only measures the air you move, not whether it is doing…Open →What Does the Strip Actually See?Read a urine dipstick against the color chart, catch the diabetes pattern, and find out why the strip can flag a problem it can never diagnose on its own.Open →What Is This Trace Allowed to Say?Measure the intervals on an EKG trace and work out the rate, then learn why a clean electrical trace says nothing about whether the heart is actually pumping.Open →Where in the Loop Is the Delay?My leg kicked the doctor before my brain even got the memo, and that is on purpose.Open →Whose Bacteria Is That?The bacteria that cost hospital patients the most extra antibiotics are not exotic. They live on the arm of the person taking the sample.Open →Biofeedback and the Autonomic Nervous SystemYour body reacts to mental stress exactly as if it were a physical threat. The sympathetic nervous system hijacks your blood flow, and we can track it on…Open →Building Better Bodies: What a Scaffold Is WorthAbout 4,500 Americans get a new heart in a year. About 6.7 million are living with heart failure. Zero have ever received a heart grown in a lab.Open →Cancer Cell Morphology Under the MicroscopeYour body is built from trillions of cells, and cancer happens when just one cell ignores the stop signals.Open →Did the Resistance Actually Transfer?Bacteria can hand each other the gene that beats an antibiotic, like passing a note in class, so a cell can become resistant to a drug it has never once…Open →DNA/RNA Microarray: Reading Gene ExpressionEvery cell in your body carries the same DNA. So why does a cancer cell act differently?Open →ELISA: Diagnosing a Mystery InfectionRun an antibody screen for a mystery infection, read every well against your controls, and learn why a positive is a reason to look closer, not a diagnosis.Open →From Sample to BandsFor every Black or African American baby born with sickle cell disease, about 28 are born carrying one copy and will never be sick from it. The whole job…Open →Gene Therapy: Vectors, Targets, and EthicsInstead of treating the symptoms forever, what if we just fixed the broken gene?Open →Glow and Purify: Protein PurificationProving your protein is in the tube takes one second under a UV lamp. Proving nothing else is in the tube is the part that takes months, and the…Open →Is It Safe to Put In: the sterility release testSomebody has to be the last person who says this is safe to put inside a human being. For most engineered products, that person is holding a tube of broth.Open →Making a Protein in Bacteria: GFP TransformationA glowing colony can show that bacteria received and expressed a reporter gene. It cannot show that a medicine was purified.Open →Minimally Invasive Surgery: Laparoscopic SkillsA box trainer measures how fast you can adapt to working backwards and watching a flat screen. It does not measure if you are ready to cut a patient.Open →Row One Is Not an AnswerIn the largest US study of children hospitalized with pneumonia, a virus was found in 66 percent of them and a bacterium in 8 percent. In 19 percent,…Open →Same Light, Two Strains: the DNA repair plate setEvery sunny day puts damage in the DNA of your skin cells. What decides your risk is not whether you get hit. It is how well the repair crew works, and…Open →Signs vs Symptoms: Building a Case DefinitionOne hundred people from a single Tennessee high school were evaluated at an emergency room in one week, and every environmental test came back clean. In…Open →Sunscreen and UV: Protecting Yeast from DamageCan a layer of lotion really protect your DNA from the sun?Open →The Drug That Does Nothing to Most PeopleA HER2 drug is one of the biggest wins in cancer medicine. For about 87 of every 100 women with breast cancer it does nothing at all, because their tumor…Open →The Ruler You Make YourselfA pregnancy hormone test came back at 900. The real value was over 1,300,000. Nothing was broken, and the fix was to make the sample weaker.Open →The Score That LiesYou suture a practice pad and score your own closure, then find out the next day why a high score can hide a wound that is failing underneath.Open →The Screen Said YesA prenatal screen that gets it right 999 times out of 1,000 can still be wrong most of the times it says yes. Nothing is broken. The condition is just…Open →What Does the Zone Mean?Measure the clear zones around antibiotic disks, then sort out which drug your plate can rank, which it can classify, and which it can say nothing about.Open →What Genotype Does a Taste Let You Claim?A clean 3 to 1 hides every carrier in the room.Open →Who Does the Threshold Protect?A county can be 95 percent vaccinated and still have a daycare where measles catches fire, because an average is not a promise about any one block.Open →Bioethics and the Belmont ReportThe Cost of DiscoveryOpen →Bioprinting a ScaffoldPrinting LifeOpen →Building a Plasmid: Recombinant DNA by Cut and PasteA plasmid is a vehicle. If you want to make a bacterium produce human insulin, a glowing jellyfish protein, or a cancer-killing toxin, you have to cut the…Open →Design and Test: PrototypingEngineering a Solution: The Unopenable BottleOpen →Forensic Autopsy: Determining Cause of DeathA body on the table tells the absolute truth about its anatomy. But some things that kill leave the anatomy looking perfectly normal.Open →Global Health MetricsMeasuring the UnmeasurableOpen →Reading the Health of WaterRun a colorimetric panel on a water sample, match each color to the scale, and learn why a clean-looking sample can still carry a dose that matters.Open →The Tube That Did Not Light UpAbout 43 million Americans drink water that nobody is required to test. Not once. Not ever. If it goes wrong, the only way anyone finds out is that people…Open →What Is the Band Allowed to Mean?Run a multiplex PCR panel and match the patient band to a reference, then learn why a band proves a pathogen DNA is present, not that it is alive or in charge.Open →What Is the Recovery Number Really Telling You?Two people can post the exact same recovery number and have completely different hearts. The number cannot tell them apart, and until you ask why, neither…Open →Where Is the Line?A child's first 8 ug/dL of blood lead cost more IQ than the next 20 did. The bottom of the curve, the part everyone called safe, is the steep part.Open →Who Was Patient Zero?Trace an outbreak back through its transmission chain, and learn why a case definition catches who fits it and misses everyone who does not.Open →You Cannot Ask a Crowd a QuestionYour tube is cloudy, which tells you something grew. It cannot tell you whether that is one organism or twenty, and no instrument pointed at that tube…Open →Molecular Separation LabBuild SDS-PAGE and agarose gels, change the run conditions, separate proteins and restriction fragments, and defend what the band pattern supports.Open →Develop, Differentiate, Derail (Level 3)The full discovery loop in three acts: form a hypothesis, run a real measurement, read honest statistics, and earn the right to make a claim.Open →Cell and Palate Lab (3D)Five interactive tools in three dimensions: the palate closing, cell mechanics, the matrix and adhesion, and a data lab.Open →
Check what changed
The pathway diagnostic
Twenty questions at the start of the course and the same core twenty at the end, so you can see what actually changed in how you think. It is not a grade, and it never becomes one.
Development to cancer diagnosticNOT OPEN YETWhat the pretest and post-test ask, what your teacher sees, and what happens to your answers. Built and under review, not collecting responses.Open →Cancer Claim ClinicTwelve claims you have heard about cancer, sorted against what the evidence actually supports. Sources are from the National Cancer Institute.Open →
Take a look
Things worth opening
Two artifacts from the track. One is the whole journey on a single page. One is what you hand in.
Where this is
Level 1 is finished. All ten puzzles are playable, and you can take them in order or open the one you want. Thirty puzzles are built across the three levels, ten at each level.
Level 2 replays the same ten puzzles with the real names turned on, so you can watch your own rule survive contact with the vocabulary. It is open, and the Level 1 hub is the way in.
Level 3 takes the same ten decisions into cancer. Those ten puzzles are built and are not open yet, so nothing here links to them.
Go Hornets.