Ugly Family Project
Throughout this unit, we have been learning about the different ways that traits are passed on from one generation to another (heredity). This lab/project will test your knowledge of the basic dominance relationships that are found within the field of genetics. You will be creating what is called an Ugly Family (Dad, Mom, and Baby) using the procedures outlined below to complete the assignment. You will be using coins to determine the genotypes for the 25 traits of the parents, making the crosses, and then choosing the genotypes for the baby based off of the crosses. Once you have determined the genotypes for the family, you will draw a family portrait depicting each of the phenotypes.
Parent Genotype Procedure:
1. Clear off a working area for your coins.
2. Flip both of the coins, one right after the other in the designated space. Heads will represent the dominant trait and tails will represent the recessive. (ie. One heads and one tails would give a heterozygous genotype.)
3. After each flip, record the genotype for that particular trait in the table provided.
4. You should determine the genotypes for both the mother and the father using the coin flips.
Baby Genotype Procedure:
1. You should do a genetic cross using a punnett square for each of the 25 traits. You should include the genotypic and phenotypic ratios for each of them. YOU MUST SHOW WORK TO GET CREDIT!
2. You now have some creative freedom. You can choose which trait you want the baby to have based off of the results from the genetic crosses.
3. Whichever trait you choose must be put into the same table as the genotypes of the parents.
4. Example:
Parents: Aa x aa
Possible Baby Genotypes (from punnett square): Aa or aa
Your Choice (this is what goes into the data table): aa
Family Portrait
1. Now you must draw a family portrait that shows each of the traits for the father, mother and baby. Feel free to go as creative as you want. However, YOU MUST USE COLOR! You will have points deducted for just a black and white drawing.
Rubric
Genotype Table
· Include genotypes for Mom, Dad, and Baby
· Correct format (see example)
· No missing information / 25
Genetic Crosses
· Show all 25 traits using punnett squares
· Show all ratios
· Done on a white blank paper
· Labeled with each trait
· Crosses done correctly / 50
Portrait
· Shows each of the traits
· Uses color
· Picture should cover ¾ or more of a white sheet of paper (8 ½ by 11) / 50
Total / 125
Data Table
Father’s Genotype / Mothers Genotype / Baby’s GentotypeShape of Face / RR / Rr / Rr
Traits
(2 heads) / Heterozygous
(1 head, 1 tail) / Hom. Recessive
(2 tails)
ABO Blood Groups / Type A
IAIA / Type A
IAi / Type O
ii
Height / Tall
JJ / Average
Jj / Short
Jj
Hair Color / Brunette
ZZ / Brunette
Zz / Blonde
zz
Feet Size / Huge
UU / Huge
Uu / Small
uu
Eye Color / Brown
UU / Brown
Uu / Blue
uu
Body Type / Skinny
YY / Average
Yy / Chunky
yy
Limb Length / Long
KK / Long
Kk / Short
kk
Sex of the Baby / Female
XX / Male
XY
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