Tucker (Joe and Sue's child) married Bonnie, who also has Marfan Syndrome. Together they have three children and two of them do not have Marfan Syndrome. Based on the information above, fill in the blanks for the genotype of each person(s) listed below. HINT: type in "AA", "Aa", or "aa". If more than one genotype is possible for any person(s), then write only one of the possible genotypes. Bonnie's genotype is: Tucker's genotype is: Affected child's genotype is: Nonaffected children's genotype is:

Two parents have the following genotypes. FF and Ff. Which of the following genotypes is not possible for their children? - FF -Ff -ff

Duchenne’s muscular dystrophy (DMD) is an X-linked disease that causes progressive muscle weakness and is often fatal. “XD” represents the wild type allele, and “Xd,” the mutant allele. Jonah is XDXd Y and his brother Pete is Xd Y. Jonah and Pete BOTH have DMD of equal severity and phenotypes. You might have thought Jonah’s DMD would be less severe given his genotype. To better understand the situation, you investigate Jonah’s Xist chromosome region in his defective muscle cells. Which of the following is consistent with his phenotype? (Select all that apply.) The Xd-containing chromosome is inactive in defective muscle cells. The XD-containing chromosome has a methylated Xist promoter. The XD-containing chromosome has an unmethylated Xist promoter. The Xd-containing chromosome is active in defective muscle cells.

Hemophilia is an X-linked disorder that affects the body’s ability to create blood clots. The allele for normal blood clotting, XH, is dominant over the allele for hemophilia, Xh.An unaffected female that is not a carrier mated with an affected male. Which of the following rows identifies the possible genotypes of the offspring?

A woman with type A blood marries a man with type O blood. They have six children, all of whom have type A blood. What are the probable genotypes of the parents? Could they ever have a child with type O blood?

Joanne has AB blood and Henry has AB blood. They have one child with A blood, one child with AB blood, and another child that has O Bombay phenotype blood. Please explain what is happening here. What is the chance that Joanne and Henry will have a child with B blood type? What is the name of the phenomenon that is responsible for the Bombay phenotype?