Genetic privacy debate
Tue, Oct 20, 2026 · Week 9 · Genetics of Disease (Medical Interventions)
Today's goal: Argue a CER position on who should be allowed to access a person's genetic test results.
What a finished product looks like
This is a model of the work you should turn in today. Use it to check your own: match the structure and the level of detail, do not copy it. Your data and wording should be your own.
Claim: A state should be allowed to keep a newborn's leftover blood-spot sample for later research only if parents are told and given a clear chance to opt out, not by silent default.
Evidence 1: Every state screens newborns by pricking the heel and drying a few drops of blood on a card, and after testing there is usually blood left over. In several states these leftover cards have been stored for years and used in outside studies, and in some cases parents were never told this could happen.
Evidence 2: Courts and health agencies have already treated stored blood spots as sensitive. In Texas and Minnesota, lawsuits over samples that were kept and shared without clear parental permission led to millions of stored cards being destroyed and to new consent rules, which shows officials recognized that quiet retention crossed a line.
Reasoning: A blood spot is not just a leftover. It carries the child's full DNA, so it can reveal medical risks about the child and about relatives who were never tested. Because that information is so personal, the fair default is that families know what is being kept and can say no, while the state keeps the narrow right to run the original health screen that protects the baby. Telling parents and offering an opt out respects the family without shutting down research that everyone agrees is useful.
Reflection: One counterargument is that research works best when scientists can study large, complete sets of samples, and letting families opt out shrinks and skews that pool. I considered it, but I kept my claim, because trust matters more than sample size. If families learn that samples were taken quietly, they may distrust screening itself, and losing that trust would hurt public health more than a smaller research pool does.
Also due today: Post your CER and reflection to the PLTW course shell.
WebXam problem for today's skill
One exam-style question that uses exactly what you practiced today. Try it before you reveal the answer, then read why each choice is right or wrong.
Tap an answer to see the full explanation. Nothing is recorded or graded.

