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?

the rocks are classified by the geological process they are formed by. the three main groups of rocks are igneous, metamorphic, and sedimentary. minerals are not they are classified under the chemical classes they are in. these groups include silicates, sulfates and carbonates.