. . . go to skittles genetics directions

schmied/reid©2009	Me, Myself, and Us	Name ___________
all rights reserved	Skittles Genetics	Per ______
	Pedigree Worksheet	Student#____

NOTE: Color the Dominant Allele on the Left side of each Gene Pair if Heterozygous

 

 

Now lets analyze the data for each of the children. Fill in the Genotype (what the alleles for each gene are inside of them ) then write in the Phenotype (what the child actually looks like).

 

 Summary Questions - Please answer in complete, quality, correct sentences.

 

1. Were any of your four children exactly alike (this is a Genotype question). If so, tell which ones. If not, tell which two were most similar in the four characteristics.

 

 

 

 

 

2. Tell which of your children most closely looks like (Phenotype) their mother considering these four genetic characteristics. Explain which characteristics look the same.

 

 

 

 

 

3. Tell which of your children most closely looks like (Phenotype) their father considering these four genetic characteristics. Explain which characteristics look the same.

 

 

 

 

 

 

 

4. Tell which of your children most closely resembles (Phenotype) Grandmother 2 in these four genetic characteristics. Explain which characteristics look the same.

 

 

 

 

 

 

 

5. If one of your parents has a dominent allele for a gene, what is the chance that each of the children will show the phenotype for that gene?

 

 

 

 

 

6. Use a Punnet square for this problem. If a mother is homozygous recessive for straight hair (cc) and the father is heterozygous for wavy hair (Cc), what is the percent chance that the children will have: a Straight hair

b. Wavy hair

c. Curly hair

 

 

 

 

 

Genetics Index Project Page Home

© 2009 John Schmied & Mike Reid all rights reserved