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:
- Question: Are dominant or recessive expressions of
genetic traits most common in this class?
- Hypothesis: Insert your
educated answer to the question here
- Data
Table: must
be ruled and include any observations that may affect data collection
- With
observation journal
- 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 traits were most
commonly affected by environmental factors obscuring the genetic
phenotype?
- 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:
- Survey at least 30 people 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.
- Describe any variations,
environmental changes or other OBSERVATIONS of note that may influence the
observance of the trait for each person tested.
- Don’t forget to keep track of
who you test and any relevant observations about trait expression for
each person tested.
- 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 x2 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.
examples:
TRAITS
|
DOMINANT
|
RECESSIVE
|
Space
Between Top Teeth
|
Space
|
No
Space
|
Chin
Shape
|
Cleft
|
No
Cleft
|
Rolling
Tongue in a “U” Shape
|
Can
Roll
|
Can’t
Roll
|
Tongue
Flipping
|
Flip
|
Can’t
Flip
|
Eye
Color
|
Brown/Green
|
Blue/Gray
|
Hand
Usage
|
Right
|
Left
|
Hair
Color
|
Not
Red
|
Red
|
Hair
Type
|
Curly
|
Straight
|
Hair
Shade
|
Dark
|
Blond
|
Earlobes
|
Detached
|
Attached
|
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
Finger “Pinky” Shape
|
Bent
Pinky
|
Straight
Pinky
|
Eyebrows
|
Bushy
|
Fine
|
Fold
both hands
|
Right
thumb on top
|
Left
thumb on top
|
Mid
digit hair (knuckles)
|
Present
|
Not
present
|
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