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Is The Ability To Wink Genetic?

based on 19 ratings
Author: Sofia PC

Grade Level: 6th - 8th;  Type: Biology- Genetics

Objective

In this experiment, we will find out if the ability to wink is genetic and also whether the “dominant” eye is also genetic or based on chance.

Introduction

Winking is a form of facial expression in which one eye is closed and the other is left open for a short amount of time. Not everyone can wink and more often than not, a person can only wink one eye comfortably.

Research Questions

  • Is the ability of a person to wink related to genetics?

Terms to Know

  • The eye
  • Winking
  • Facial expression

Materials

  • Test subject families, the more the better (the families should be biologically related)
  • Pen and paper for notes

Experimental Procedure

  1. Have your test subject family all try to wink.
  2. Record which member of the family can wink and which can not.
  3. Have each member try winking both eyes and ask them which eye is easier to wink even if they can wink both.
  4. Record the information.
  5. Repeat steps 1-4 for all your test subject families.
  6. Evaluate whether you see any trends presented in the abilities to wink of each family.

Suggested Chart

Example:

Families

Family Member

Can he/she wink?

Which eye is easier to wink?
Family #1
Mom

 

 

Dad

 

 

Son

 

 

Family #2

Mom

 

 

Dad

 

 

Son

 

 

Daughter

 

 

Family #3

Mom

 

 

Dad

 

 

Daughter

 

 

Daughter

 

 

References

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