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 fossil is any trace of past life that lived prior to historic times. A scientist who studies fossils is called a paleontologist. Fossils come in many forms-seashells, animal bones, leaf impressions, wood, even animal burrows or footprints preserved in rock.They also come in many sizes, ranging from less than 1/100th of a millimeter to greater than tens of meters. scientist who studies fossils is called a paleontologist. Fossils come in many forms-seashells, animal bones, leaf impressions, wood, even animal burrows or footprints preserved in rock.