Which of the Following Is True About the Current Findings

Multiple Choice

Which of the following is true about the current findings of the Human Genome Project, which is developing a "manual" for the basic blueprint of the entire genetic material found in each cell of the body?

A) Scientists have been able to map and understand all of the genes in the nucleus of a human cell.
B) Scientists have discovered the genes associated with the occurrence of certain hereditary diseases, such as Huntington's chorea, cystic fibrosis, and muscular dystrophy.
C) Scientists have developed drugs and other interventions to cure many of the genetically inherited diseases.
D) Scientists have discovered that most inherited diseases can be traced to a single gene.