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Do you have these Traits?
Attached Earlobes Tongue Rolling Dimples Right-Handed Freckles Straight Hair Cleft Chin Allergies Hitchhikers Thumb Widow’s Peak
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Inventory of Traits Lab
Problem Are dominant traits or recessive traits more common? Hypothesis If people are surveyed about their traits, then we will learn… Dominant traits are more common More people have traits that are recessive Etc.
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Method Take Survey. Graph the class results of the survey.
Survey 10 people outside class. Graph Results
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Data Trait Answer Attached Earlobes Tongue Rolling Dimples
Class Yes Class No Attached Earlobes Tongue Rolling Dimples Right-Handed Freckles Straight Hair Cleft Chin Allergies Hitchhikers Thumb Widow’s peak
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Number of Students in Class with Trait
Class Graph Number of Students in Class with Trait Dimples Attached Earlobes Hitchhiker’s Thumb Tongue Rolling Right Handed Freckles Straight Hair Cleft Chin Allergies Widow’s Peak
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Dominant or Recessive Trait (Phenotype) Dominant or Recessive
Possible Genotype Attached Earlobes Tongue Rolling Dimples Right-Handed Freckles Straight Hair Cleft Chin Allergies Hitchhikers Thumb Widow’s peak Recessive Dominant Dominant Dominant Dominant Recessive Dominant Not determined Recessive Dominant
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Conclusion Which dominant traits are more common?
Which recessive traits are more common? Are dominant traits or recessive traits more common (in general)? Hypothesis
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