In a particular breed of cattle a black coat is dominant over red coat if a cow with a red coat is crossed with a black bull that is heterozygous for coat color what percentage of offspring would you expect to be black

Pegmatites are igneous rocks in which the individual minerals are very large. typically, the minerals are all light-colored quartz, feldspar and muscovite. if you were given a black and white photograph of a pegmatite in a quarry (where the rock has been blasted and broken), what physical properties could you use to identify those three minerals in this hypothetical photo? describe each mineral and the specific diagnostic properties. be specific.