Pedigree logic
Use pedigree symbols to track an inherited trait and identify carriers across generations.
Completed three-generation pedigree with carriers circled, mode of inheritance stated, and one sentence of evidence.
- 1Do thisUse pedigree symbols to track an inherited trait and identify carriers across generations.
- 2Use this resource
- 3Submit thisData table: Completed three-generation pedigree with carriers circled, mode of inheritance stated, and one sentence of evidence.
- 4Submit it here
- 1CMSD website. Go to clevelandmetroschools.org and click the Clever button.
- 2Clever. Clever opens. Sign in if it asks.
- 3Microsoft (district) login. Use your district Microsoft account (the one for school).
- 4Schoology. Open Schoology, then your class, then Assignments, and find the file named below.
The file to submit is named: Genetics of Disease (Medical Interventions) › Inheritance review, pedigree logic, SNPs, genetic counseling, and the MP1 data inflection. › Data tableOpen Schoology
- CER:
- Claim, Evidence, Reasoning — make a claim, back it with evidence, explain your reasoning.
- SOP:
- Standard Operating Procedure — the exact steps to follow (especially in a lab).
- Tracker:
- Your PLTW progress log where you record completed evidence.
- myPLTW:
- The PLTW course site where you do the online activities — you open it through Schoology.
Minute-by-minute · 80-minute block
💡 Big idea: How does a family's health history, drawn as a diagram, reveal the invisible logic of inheritance?
- 0-8Teach pedigree symbol conventions; practice drawing one mating pair
- 8-25Map the case family from dataset across three generations
- 25-40Determine dominant vs. recessive from pattern; write evidence sentence
- 40-55Circle all obligate carriers; write one-sentence explanation for one
- 55-70Partner check: verify each other's pedigrees for symbol errors
- 70-80Submit pedigree and inheritance call to course shell
- • Hook: Show a three-generation family photo and ask: can you tell from a photo who carries a hidden gene?
- • Why it matters: Genetic counselors read pedigrees to estimate the risk a client's future children will be affected.
- • Today's work: You will build and read a pedigree to make exactly that kind of call.
- • Exit goal: Completed three-generation pedigree with carriers circled and inheritance mode stated.
- 1Draw the standard pedigree symbols: square, circle, and a line for a mating, and label affected versus unaffected.
- 2Map the family in the shell dataset across three generations using those symbols.
- 3Decide whether the trait is dominant or recessive and write one line of evidence from the pattern.
- 4Circle every individual who must be a carrier and explain one of them.
- 5Submit your pedigree and inheritance call as your daily evidence.
- • You'll be able to build a correct three-generation pedigree.
- • You'll be able to identify carriers and the mode of inheritance from the pattern.
- • Pedigree conventions: squares are male, circles are female, filled shapes are affected, a horizontal line connects mates.
- • If two unaffected parents produce an affected child, the trait is autosomal recessive.
- • A carrier has one working and one non-working allele; they do not show the trait but can pass it on.
Your PLTW work today
Inheritance review, pedigree logic, SNPs, genetic counseling, and the MP1 data inflection. · Pedigree logic
Day 2 of this lesson. Open this exact section in myPLTW (reached through Schoology), then do the work below.
Do this: Open Activity 2.1.1 Chronicles of a Genetic Counselor in myPLTW and use the case family dataset to build your three-generation pedigree.
Mark the pedigree activity complete after your diagram and inheritance call are submitted.
Monday debate should be posted; pedigree due today.
Three-generation pedigree with carriers circled and inheritance mode stated, submitted in the course shell.
All PLTW activities are completed inside the PLTW course environment — this page only gives direction. Submit producibles on Schoology.
Today's PLTW tracker
Check things off as you work, then submit. This tells Mr. Mendoza how you're doing so he can help the class. It does not replace turning in your producible on Schoology.
Use the code Mr. Mendoza gave you, not your name. Saved on this device.
Inheritance review, pedigree logic, SNPs, genetic counseling, and the MP1 data inflection. · Pedigree logic
Open Activity 2.1.1 Chronicles of a Genetic Counselor in myPLTW and use the case family dataset to build your three-generation pedigree.
Monday debate should be posted; pedigree due today.
This is how Mr. Mendoza sees the class keeping pace with PLTW. Be honest, it only helps if it is accurate.
🎯 Use pedigree symbols to track an inherited trait and identify carriers across generations.
- Draw the standard pedigree symbols: square, circle, and a line for a mating, and label affected versus unaffected.
- Map the family in the shell dataset across three generations using those symbols.
- Decide whether the trait is dominant or recessive and write one line of evidence from the pattern.
- Circle every individual who must be a carrier and explain one of them.
- Submit your pedigree and inheritance call as your daily evidence.
Data table: Completed three-generation pedigree with carriers circled, mode of inheritance stated, and one sentence of evidence.
Submit on SchoologyUpload by 11:29 PM for full credit.
| Task | Who |
|---|---|
| Draw the standard pedigree symbols: square, circle, and a line for a mating, and label affected versus unaffected. | _______ |
| Map the family in the shell dataset across three generations using those symbols. | _______ |
| Decide whether the trait is dominant or recessive and write one line of evidence from the pattern. | _______ |
| Circle every individual who must be a carrier and explain one of them. | _______ |
| Submit your pedigree and inheritance call as your daily evidence. | _______ |
Working solo? Put your own name in "Who" for every row.
- You'll be able to build a correct three-generation pedigree.
- You'll be able to identify carriers and the mode of inheritance from the pattern.
Teacher-posted resources
Classroom documents for this lesson. Ones marked “Open the file” open right here; the rest are posted in Schoology. Use the label on each card to choose the right move.
Use this after the required lesson work when you are ready for a harder application or a deeper connection.
Placement rationale
Matched Genetic testing, PTC, pedigree, SNPs by path:Medical-Interventions/Unit-2_How-to-Screen-Your-Genes/2.1_Genetic-Testing-and-Screening; keywords:genetic testing, screening, ptc. Score 150. Visibility: student-schoology (student-facing resource; link through Schoology rather than local path).
Use this as the classroom resource for Genetic testing, PTC, pedigree, SNPs.
Placement rationale
Matched Genetic testing, PTC, pedigree, SNPs by path:Medical-Interventions/Unit-2_How-to-Screen-Your-Genes/2.1_Genetic-Testing-and-Screening; keywords:genetic testing, screening, snp. Score 146. Visibility: student-schoology (student-facing resource; link through Schoology rather than local path).
Use this if you were absent, got stuck, or need another pass before you submit the lesson artifact.
Placement rationale
Matched Genetic testing, PTC, pedigree, SNPs by path:Medical-Interventions/Unit-2_How-to-Screen-Your-Genes/2.1_Genetic-Testing-and-Screening; keywords:genetic testing, screening. Score 142. Visibility: student-schoology (student-facing resource; link through Schoology rather than local path).
How to get there: open the CMSD website, click Clever, sign in with your Microsoft (district) account, then open Schoology from Clever.
This unit's vocabulary
Tap the speaker to hear a term. Weekly vocabulary task: add two of these terms to your notebook glossary with a definition and an example in your own words.
WebXam practice
Cumulative WebXam review
A quick mixed-review pulling questions from earlier units plus today, so the WebXam material stays fresh.
Where this leads — careers
What today's skills lead to. These are real health-science careers this course builds toward. Tap one to see, on the US Department of Labor's O*NET site, what the job actually involves, what it pays, and how fast it is growing.
What to do if you were absent
Today is individual PLTW work, so do exactly what we did in class, from home: complete the same PLTW target above, then submit your Data table.
Open Schoology (CMSD) and keep goingHow to get there: open the CMSD website, click Clever, sign in with your Microsoft (district) account, then open Schoology from Clever.
Class still runs. Complete the online activity above (it's self-guided). Need the concept taught without a teacher? Use this authoritative explainer:
MedlinePlus: What is genetic testing?- CompleteEvery required part of the artifact is present, nothing left blank.
- AccurateThe science and the data are correct and match the evidence.
- Scientific reasoningYou explain your claim with evidence and reasoning (CER), not just an answer.
- Professional communicationClear, organized, labeled, and written the way a clinician or scientist would.
- SubmittedTurned in the right way (Schoology for routine work) and confirmed.
Drop your Wed, Oct 14, 2026 · Pedigree logic here. Use a clear file name (your initials + project). Routine work still goes to Schoology (via the CMSD portal).
Upload a project