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 the remains (or an impression) of a plant or animal that existed in a past geological age A trace fossil is the burrows, trails, etc, of an animal.   A â¦ trace fossil is where something left a mark on something else, and then became fossilized.A body fossil is a fossil of a once living thing.race fossils are any fossil connected to ancient life but not the animal itself. Examples include footprints, teethmarks, nests, gizzard stones, coprolites, burrows etc. In a lot of ways trace fossils are as important as body fossils. The give us insight into how the animal lived, how fast it walked, what ate what etc.