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.
Fossil. Definition. noun, plural: fossils. (1) Any preserved evidence of life from a past geological age, such as the impressions and remains of organisms embedded in stratified rocks. (2) The mineralized remains of an animal or plant.adjective. Having the characteristic, or pertaining to the nature, of a fossil.1) Any preserved evidence of life from a past geological age, such as the impressions and remains of organisms embedded in stratified rocks. (2) The mineralized remains of an animal or plant. adjective. Having the characteristic, or pertaining to the nature, of a fossil.