Pass It Down

1
Pass It Down

• Course Biology
• Unit Genetics
• Developed by Students
• at Glencoe High School

2
Description

• Activity 1
• Frequency of Traits
• Can you roll your tongue? This question and many
  more will be answered as you calculate the
  frequency of facial traits seen in your class!

• Activity 2
• Genetics of Taste
• Brussel Sprouts yum or yuck? Why does food taste
  different to different people? Be prepared to
  test your ability to taste, as well as form
  evidence based opinions to these questions!

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Activity 1 Frequency of Facial Traits

• Objectives
• AL COS 7
• Calculate frequency of facial traits.
• Hypothesize the method of inheritance of various
  facial traits.

• Materials Needed
• Student Handout Frequency of Traits
• Calculator

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What do these guys have in common?

• Lance Armstrong

• Eddy Munster

5
What do these guys have in common?

• Lance Armstrong

• Eddy Munster

They both have a widows peak!
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During this activity, you will calculate the
frequency of the following traits in class

• Tongue Roller vs. Non-Tongue Roller
• Widows Peak vs. Straight Hair Line
• Free Ear Lobes vs. Attached Ear Lobes
• Freckles Present vs. Freckles Absent
• Dimples Present vs. Dimples Absent
• Green Eyes vs. Non-Green Eyes
• Curly Hair vs. Straight Hair
• Red Hair vs. Non-Red Hair

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Congratulations!

• When you have completed Activity 1, Frequency of
  Facial Traits, proceed to Activity 2, Genetics of
  Taste.

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Activity 2 Genetics of Taste

• Objectives
• AL COS 7
• Calculate class frequency of the ability to taste
  various chemicals.
• Form an evidence based opinion to answer post lab
  question(s).

• Materials Needed
• Student Handout Genetics of Taste
• Control Taste Strip
• PTC Taste Strip
• Thiourea Taste Strip
• Calculator

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Is your sense of taste determined by nature or
nurture?

• Time to brainstorm for possible answers!

• After brainstorming, test your ideas through
  experimentation
• as directed by your teacher!

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Congratulations!

• Since you have completed Activity 2, Genetics of
  Taste, you are an educated biology student
  qualified to pass genetics information down to
  others!

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Citations For Pictures Included In This
Presentation

• Turning a Libertarian. Word-Drum Extremism in
  Defnse of Liberty. Word-Drum. Web. 31 Jan 2011.
  http//www.google.com/imgres?imgurlhttp//worddru
  m.files.wordpress.com/.
• Walsh, Matt. Lance Armstrong hits Alberto
  punching bag again. The King of Spain rides for
  Kazakhstan?. Twisted Spoke. Matt Walsh, 30 Dec
  2009. Web. 31 Jan 2011. http//www.atwistedspoke.c
  om/lance-armstrong-hits-alberto-punching-bag-again
  -the-king-of-spain-rides-for-kazakhstan/.