What is rbcl and why is it particularly useful for studying evolutionary relationships in plants and green algae?

Huntington's disease is a genetic disorder that is caused by a dominant allele. which of the following is true? a. a child who inherits one copy of the gene that causes huntington's will have the disease. b. a child who inherits one copy of the gene that causes huntington's is a carrier for the disease. c. huntington's disease tends to skip generations. d. a person with huntington's disease will pass the disease on to 100 percent of their children.