Is The Ability To Wink Genetic?

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Updated on Mar 22, 2013

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

Sofia PC is currently a college student with a deep interest in science who is aspiring to become a writer. She writes about all sorts of things across all subjects including, but not limited to; science, crafts, and fashion. She hopes to become a good writer so she can share her thoughts and experiences with the world and future generations.

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