Left and RightLeft and Right

Aaron, Cameron, Jaidyn, and Aaron, Cameron, Jaidyn, and KaylaKayla

QuestionQuestion

• Are some forms of Are some forms of inherited traits inherited traits more common than more common than others?others?

HypothesisHypothesis

We think that left the thumb overlap, We think that left the thumb overlap, right handedness, and left arm right handedness, and left arm overlap are going to have a better overlap are going to have a better probability of occurring, because it is probability of occurring, because it is most common based on a sample most common based on a sample survey of our fifth grade class.survey of our fifth grade class.

MaterialsMaterials

A pencil, eraser, table chart, science A pencil, eraser, table chart, science book, 1-6 grade students at MGS, book, 1-6 grade students at MGS, and their information.and their information.

Control VariableControl Variable

Survey each student Survey each student for every trait. for every trait.

The form of each The form of each trait is the variable trait is the variable that changes that changes among the among the students you students you survey. The survey. The number of students number of students with each trait is with each trait is another variable. another variable.

ProcedureProcedure

1.1. Make a chart for grades 1-6 to Make a chart for grades 1-6 to record their information.record their information.

2.2. Survey each student in each class Survey each student in each class for their traits.for their traits.

3.3. Record the data on your charts.Record the data on your charts.

MGS TableMGS Table

Minneapolis Grade school Heredity traitsMinneapolis Grade school Heredity traits

TraitsTraits Number of StudentsNumber of Students

Right Thumb OverlapRight Thumb Overlap 9797

Left Thumb OverlapLeft Thumb Overlap 157157

Right HandedRight Handed 227227

Left HandedLeft Handed 2626

Left Arm OverlapLeft Arm Overlap 115115

Right Arm OverlapRight Arm Overlap 117117

MGS GraphMGS Graph

Minneapolis Grade School Heredity Traits

0

50

100

150

200

250

Rig

ht T

hum

b O

verlap

Left T

hum

b O

verlap

Rig

ht H

anded

Left H

anded

Rig

ht A

rm O

verlap

Left A

rm O

verlap

Traits

Nu

mb

er

of

Stu

den

ts

• The most common The most common traits in our school traits in our school were right were right handedness and left handedness and left thumb overlap. thumb overlap.

• The left arm overlap The left arm overlap and right arm and right arm overlap are equally overlap are equally common. common.

ConclusionConclusion

By looking at our graph we see that By looking at our graph we see that our hypothesis was correct, because our hypothesis was correct, because left thumb overlap and right left thumb overlap and right handedness were most common.handedness were most common.

The left and right arm overlap were The left and right arm overlap were equally common traits.equally common traits.

BibliographyBibliography

Cooney, Timothy. Cooney, Timothy. ScienceScience. Glenview: Scott Foresman, 2003.. Glenview: Scott Foresman, 2003.

"Heredity Traits in Pocantico Hills School." 02 Feb. 2006 "Heredity Traits in Pocantico Hills School." 02 Feb. 2006

<http://www2.lhric.org/pocantico/5thgrade98/heredity.htm>.<http://www2.lhric.org/pocantico/5thgrade98/heredity.htm>.

"Kids Genetics." "Kids Genetics." HeredityHeredity. Glaxo Smith Kline. 02 Feb. 2006 . Glaxo Smith Kline. 02 Feb. 2006

<http://www.genetics.gsk.com/kids/heredity01.hT>.<http://www.genetics.gsk.com/kids/heredity01.hT>.

"The Gene School." "The Gene School." HeredityHeredity. ThinkQuest. 02 Feb. 2006 . ThinkQuest. 02 Feb. 2006

<http://library.thinkquest.org/190371heredity.html>.<http://library.thinkquest.org/190371heredity.html>.