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DESIGN A BABY FACE OBJECTIVE: To learn the relationship between genotype and phenotype. RESEARCH Genotype: the DNA = the genes. Phenotype: how the genes are expressed (what the trait looks like). Allele: form of a gene. Dominant Allele: the allele that is seen in hybrid phenotypes. Recessive Allele: the allele that is not seen in hybrid phenotypes. Incomplete Dominance: hybrid alleles blend to produce a third phenotype. ACTIVITY INFORMATION • You and your partner will determine the phenotypic characteristics of a hypothetical offspring. • Each partner is a HYBRID for all of the traits: so there is a 50% chance to pass on either the dominant or the recessive allele. • The combinations of the parents’ alleles determines what the new baby looks like! DIRECTIONS 1. Each parent (partner) will flip a coin to determine if s/he passes on the dominant or recessive allele: HEADS = dominant TAILS = recessive 2. Record your genotype combinations for each trait on the data table. 3. Draw the face of your baby to show the inherited phenotypic traits. CONCLUSIONS 1. How many traits were purebred dominant, hybrid, and purebred recessive in your baby? 2. Why does each parent only get to flip once for each trait?