Cystic fibrosis is a recessive disorder. Two individuals that are both heterozygous for CF have children, what percent of their offspring will be affected by the disorder?

Which best describes the nucleus of an atom a. it is where all of the particle s of the atom are located b. it is the negatively charged part of the atom c. it is where the electrons and the protons are located d. it is the part of the atom with the greatest mass