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    • Unit 1: Ecosystems
    • Unit 2: Biodiversity
    • Unit 3: Populations
    • Unit 4: Earth Systems and Resources
    • Unit 5: Land and Water Use
    • Unit 6: Energy Resources and Consumption
    • Unit 7: Atmospheric Pollution
    • Unit 8: Aquatic and Terrestrial Pollution
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  • CHS Environmental Science
    • Environmental Chemistry
    • Ecosystems and Population Interactions
    • Earth History and Natural Resources
    • Weather and Climate
  • Science Resources
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      • Genetics Exam Review
    • Evolution
    • Chemistry
    • Physics - Motion and Forces >
      • Speed, Velocity, and Acceleration
      • Force
      • Newton's 3 Laws of Motion
      • Gravitational Force
      • Weight
      • Newton's Second Law - Finding a Net Force
      • Newton's Second Law of Motion - Finding Acceleration
      • Newton's Third Law of Motion
    • Physics - Energy and Waves
    • Astronomy
    • Next Generation Science Standards (NGSS)
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PTC Taste Test

8/28/2017

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Our exploration of Genetics is in full swing and today students used PTC paper to test whether they are a supertaster or not. PTC (Phenylthiocarbamide) is a chemical that tastes really bitter to some people (supertasters) kind of bitter to others (medium-tasters) and has no taste to some (non-tasters). Your ability to taste PTC is reliant on a single gene. If you have two copies of that gene you are a super taster, only one copy means you are a medium-taster, and no copies means you are a non-taster.
Picture
Click this molecule to learn more about PTC and the genetics of taste.
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    Mr. Powell is a High School Science Teacher in Western Colorado.

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