- This worksheet is designed for students to observe and record the presence or absence of specific inherited physical traits in themselves and others.
- The student should first examine their own features and mark "Yes" or "No" in the "Do I have it?" column for each trait.
- Next, the student should survey a group of people (e.g., classmates, family members) and tally how many individuals exhibit each trait in the "Number of people who have it." column.
- In the final column, "Number of people who don't have it.", the student should record the count of individuals from the same surveyed group who do not exhibit the trait.
- The traits listed are common examples of simple Mendelian inheritance: Widow peak (V-shaped hairline), Roll tongue (ability to curl tongue), Gap in front teeth (diastema), Longer second toe (Morton’s toe), and Earlobe attached (vs. free-hanging).
- After collecting data, the student can compare frequencies and discuss patterns of inheritance, such as dominant vs. recessive traits, based on observed ratios.
Parent Tip: Review the logic above to help your child master the concept of inherited traits worksheet 3rd grade.
