Best Answer: Genotype frequencies are the frequencies of the homozygous dominant (AA) heterozygous (Aa) and homozygous recessive (aa). If you're using population genetics, then they are the p^2, 2pq, and q^2 values.
Petrified fossil is an organism that has been converted into stone.  Silica, iron and copper minerals can be commonly found in petrified  fossils.
(a.) Like or regarding fossils; within rocks, whether petrified or not; as, fossil plants, shells. (n.) A substance dug through the planet. (n.) The continues to be of an animal or plant present in stratified rocks. Many fossils fit in with extinct types, but the majority of of the later people participate in types still-living. (letter.)