Tuesday, January 22, 2013

Traits lab guide sheet


Traits Lab for District Competency (graphing skills, analysis and predictions)

 

Back ground:  This partial lab will be used to determine your science competency for the district.  It is expected that you should be able to complete this lab with a score of 70% or higher; scoring below this # in essence suggest that you do not have the skills needed to earn credit for this class.  You may continue to redo this lab until you have a 70% score.  But your grade on the lab for my class will only change if you earn the passing score by its due date or after the first revision.

 

Task:  This is a partial lab write up you will need to include the following for your final draft:

  1. Question:  Are dominant or recessive expressions of genetic traits most common in this class?
  2. Hypothesis:  Insert your educated answer to the question here
  3. Data Table:  must be ruled and include any observations that may affect data collection
  4. With observation journal
  5. Analysis:  Using the good graphing rules create a bar graph that compares the # of students that have the dominant or recessive expression of each trait you test.  Questions 1) How would testing the entire 10th grade population affect your answer to the question?  2) Which trait(s0 were most commonly affected by environmental factors obscuring the genetic phenotype?
  6. Conclusion:  write your conclusion paragraph.  Restate the hypothesis, use evidence to support your comments, address sources of error and include a next step (social context is not required).

Procedures:

  1. Survey everyone in class for the presence of at least 7 genetic traits.  Coordinate with your group members you may not all test the same traits (no more than 4 can be in common) for each table group.
  2. Describe any variations, environmental changes or other OBSERVATIONS of note that may influence the observance of the trait for each person tested.
    1. Don’t forget to keep track of who you test and any relevant observations about trait expression for each person tested.
  3. Once the data collection process is complete begin the analysis and conclusions.  This part can easily be completed at home.  Use REAL graph paper.

 

The Lab rubric/grading:

  • I will grade all parts of the Format section
  • Data Manipulation will be x3 pts a score for data tables, graphs and analysis questions
  •  And all of the Conclusion section should be included with all sections (except Logic) worth x2 pts.
 
TRAITS
DOMINANT
RECESSIVE
Space Between Top Teeth
Space
No Space
Chin Shape
Cleft
No Cleft
Hair on Knuckles
Hair
No Hair
Rolling Tongue in a “U” Shape
Can Roll
Can’t Roll
Tongue Flipping
Flip
Can’t Flip
Eye Color
Brown/Green
Blue/Gray
Ear Lobe Attachment
Free
Attached
Hand Usage
Right
Left
Hair Color
Not Red
Red
Hair Type
Curly
Straight
Hair Shade
Dark
Blond
Nose Shape
Roman
Straight
Freckle Amount
Freckles
No Freckles
Having Dimples
Dimples
No Dimples
Hair Line
Widow’s Peak
No Widow’s Peak
Hitchhiker Thumbs
Curved Thumbs
Straight Thumbs
Little Finder “Pinky” Shape
Bent Pinky
Straight Pinky
Finder/Toe Number
6
5
Taster (PTC)
Taster
Non-Taster
TRAITS
DOMINANT
RECESSIVE
PEDIGREE DETERMINED
Hitchhiker Thumbs
Curved Thumbs
Straight Thumbs
Yes
Hair Color
Not Red
Red
Yes
Hair Type
Curly
Straight
Yes
Hair Type
Curly
Straight
Yes
Eye Color
Brown/Green
Blue/Gray
Yes
Rolling Tongue in a “U”
Can Roll Tongue
Can not roll Tongue
Yes

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