Jan. 10 – 12, 2011 Welcome Assignment Get Science Notebook Complete the following problem: Parent 1 = (Hh) Heterozygous for Straight Hair Parent 2 = (hh) Homozygous Recessive for Curly Hair Genotype: Homozygous Recessive _____ Homozygous dominant _____ Heterozygous _____ Phenotype: Straight Hair______________ Curly Hair______________

Answers to Homework Traits #2 Phenotype Dark Shelled = 100% Light Shelled = 0% Genotype Homozygous recessive = 0% dd Homozygous dominant = 0% DD Heterozygous = 100% Dd #1 Phenotype Dark Shelled = 75% Light Shelled = 25% Genotype Homozygous recessive = 25% dd Homozygous dominant = 25% DD Heterozygous = 50% Dd DD Dd dd Dd #3 Phenotype Big Shelled = 50% Small Shelled = 50% Genotype Homozygous recessive = 50% bb Homozygous dominant = 0% BB Heterozygous = 50% Bb #4 Phenotype Big Shelled = 100% Small Shelled = 0% Genotype Homozygous recessive = 0% bb Homozygous dominant = 50%BB Heterozygous = 50%Bb Bb bb BB Bb

Traits for Heredity Buddies Category Phenotype Dominant Genotypes Recessive Genotype Color Blue QQ or Qq Yellow qq Gender Female XX Male XY Eyes Square EE or Ee Round ee Nose Triangle NN or Nn Oval nn Teeth TT or Tt Pointed tt SuperPower (Co-Dominance) Invisibility Flame Thrower Invisible Flame Thrower