Frequency of U2 allele in the population

we have 300+300+50+350=1000 individuals

400 have the u2 gene

that means 40% or a frequency of 0.4

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.