Use a simple allele probability model
Distinguish model probabilities from a guaranteed number of offspring.
Open lesson 1Inheritance probabilities and their limits
Use an explicit simple inheritance model to infer possibilities and assess probabilistic outcomes.
Before you begin
- Use a two-by-two allele table; multiply fractions; distinguish chance from a guaranteed count.
Choose by skill rather than age alone. Read with an adult when useful, revisit a lesson, or explore another grade.
Follow the lesson sequence
Infer a Model Parent from an Offspring
Use an offspring genotype to rule out a parent possibility.
Open lesson 2Combine Independent Offspring Chances
Calculate a short sequence probability under explicit independence.
Open lesson 3Compare Expected and Observed Counts
Interpret a small sample without treating probability as a quota.
Open lesson 4Review and transfer
After the lessons, try 4 new review cases and a practical task. Each answer has an explanation and a link back to the related lesson.
Open the unit reviewGuest answers are temporary. Keep your own paper or document; this unit does not certify completion or record a school grade.