4. A man is homozygous for both dimples (D) and attached ear lobes (e) is married to a woman without dimples and heterozygous for free ear lobes. What are the genotypic and phenotypic ratios of the offspring? What is the probability of the first offspring being dimpled and having attached ear lobes? What is the probability of the offspring being recessive for both characteristics? D = Dimples; d = no dimples Symbols E = Free ear lobes; e = attached ear lobes Parental Cross Genotypic Ratios Phenotypic Ratios X Punnett Square What is the probability of the first offspring being dimpled and having attached ear lobes? Biology 130 Lab Report Lab 12 What is the probability of the offspring being recessive for both characteristics? Page 4 of 20

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