Investigate Human Pedigrees: Where are the branches on the family tree? Unlike some organisms, humans reproduce slowly and produce few offspring at one time. One method used to study human traits is pedigree analysis. Procedure: Read and complete the lab safety form. Imagine that you are a geneticist interviewing a person about his or her family concerning the hypothetical trait of hairy earlobes. From the transcript below, construct a pedigree. Use appropriate symbols and format.
"My name is Scott. My great-grandfather Walter had hairy earlobes (HEs), but great-grandma Elsie did not. Walter and Elsie had three children: Lola, Leo, and Duane. Leo, the oldest, has HEs, as does the middle child, Lola, but the youngest child, Duane, does not. Duane never married and has no children. Leo married Bertie, and they have one daughter, Patty. In Leo's family, he is the only one with HEs. Lola married John, and they have two children: Carolina and Luetta. John does not have HEs, but both of his daughters do.