Name_____________________________  Date _____ Per  ____

 

Family Pedigree Project

 

Project Overview:  How many times have you heard from a relative, “You look just like your Uncle Joe?” Or you might hear, “You’re grandfather had the same nose as you.” It’s obvious to us that traits are passed down from generation to generation. A pedigree is like a map that shows how traits are distributed through a family’s generations.

 

In this project, you will create two different pedigree charts for at least ten members of your own family. You will chart the passing of four different traits for three generations of your family. Clearly indicate and label the traits you are tracing. You will need a key on each pedigree chart. Use the letters below to indicate a particular allele (upper case letters for the dominant allele and lower case letters for the recessive allele). For example, for tongue rolling, use the letter “R” for family members who can roll their tongue and “r” for family members who cannot roll their tongue (use different letters for different traits).

 

You will need to ask questions of your parents, grandparents, or any other family member with an in-depth knowledge of your family tree. You can use your creativity in the design of the pedigree chart, but proper pedigree symbols must be used.  (See Pedigree Notes handed out in class)  

 

Pedigree requirements:

I.                   Choose 2 traits to investigate in your family (thus, you will turn in four different pedigree charts - each on a separate sheet of paper).

II.                Each pedigree should contain at least 10 people (if you have a small family  or several unknowns you will need to do more than 2 traits – see me for the modifications).

III.Each pedigree should go back at least 3 generations.  (Grandparents, Parents and you)

IV.   Each pedigree should be on a poster board

 

 

V.            Each pedigree should have a key; use appropriate pedigree symbols.

Also note for each individual:

A.  Genotype (when able)

B.  Phenotype

C.  Name of relative

 

List of possible traits: (choose two)

Tongue rolling (RR or Rr = roller, rr = non-roller)

Attached earlobes (EE or Ee = unattached, ee = attached)

Mid-digital hair [hair between the first two knuckles] (MM or Mm = hair,

mm = no hair)

Hitch-hiker’s thumb (TT or Tt = hitch-hiker, tt = non-hitch hiker)

Widow’s peak (WW or Ww = widow's peak,  ww = no widow's peak)

Dimples (DD or Dd = present, dd = no dimples)

Freckles (FF or Ff = present, ff = no freckles)

Hair texture (HH = curly, Hh = wavy, hh = straight)

Chin Cleft (CC or Cc = no cleft, cc = present)

(if there is another trait you would like to do – please see me)

 

Analysis:

Finally, you will need to type a 1-2 page analysis (Times New Roman font, 12 pt. font, one inch margins, double spaced) detailing the process of creating your pedigree chart.  If you do not type your paper it should be neatly written. You should discuss successes and problems encountered in creating the chart as well as any surprises or discoveries made during the process. A paragraph or more should be devoted to analyzing the genetic traits of the relatives on the chart. What patterns related to genetics and inheritance do you see in your chart? Finally what hypotheses and/or conclusions can you draw from examining your genealogical data?

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Grading Guidelines and Rubric for Family Pedigrees and Analysis

 

Please turn this sheet in with your paper and works cited page!

 

Name: __________________________            Period_________

 

2 Traits analyzed in pedigrees:

________________   _________________  

 

Grading of this project will be based upon four main topic areas:

I.      Pedigrees (50 pts)

A.      2 traits investigated in your family (thus, four different pedigrees).

B.       Each pedigree should contain at least 10 people (unless you have seen me for the modifications).

C.       Each pedigree goes back at least 3 generations.

D.      Each pedigree should be a full 8.5 x 11 inches (no bigger).

E.       All lines must be drawn with a ruler/yardstick

F.       Title your pedigree, and clearly mark generations I, II, III

G.      Include a KEY, designed in Microsoft Word or a similar Word Processing program,
for your symbols 

 

H.      Each pedigree should have a key; use appropriate pedigree symbols.

Also note for each individual:

A.  Genotype (when able)

B.  Phenotype

C.  Name of relative

 

II.    Analysis (10 pts)

A.      must be proper format

1.        proper spelling and grammar

 

B.       must contain proper information

1.        successes and problems encountered in creating the chart

2.       surprises or discoveries made during the process

3.       A paragraph or more should be devoted to analyzing the genetic traits of the relatives on the chart (What patterns related to genetics and inheritance do you see in your chart?)

4.       What hypotheses and/or conclusions can you draw?

 

III.           Works cited page (9 pts)

A.      List names of family members interviewed, whether or not photographs were used, etc.

B.       Must be typed or neatly written

C.       Must be on a separate sheet of paper

 

IV. Overall quality of work and effort put forth (11 pts)

 

 

Extra Credit:  Insert actual pictures of family members wherever possible.

 

Point breakdown:

Topic              Possible       Earned

1. Pedigrees         50                

2. Analysis              30                

3. Works Cited       9                 

4.  Overall effort   11            ____

 

Total Points           100        _____

 

Extra Credit:  10 points