inherited - from you parents or grandparents and so on.
enviromental - from your environment
DNA
genetic
The two main sources of genetic variation are gene shuffling and mutations. A mutation is a process wherein the structure of a gene is altered.
The main source of genetic variation is a large population with a large gene pool.
two
A normal cell.
Petroleum. For details about the chemistry you might wish to consult the benzene page on wikipedia.
Natural and Artificial Selection
The two main sources of genetic variation are sexual reproduction, and mutation. Sexual reproduction is more common.
Mutation and the genetic recombination in sexually reproducing organisms.
transcrption and translation
Crossing over of choromosomes and Mutation in cells. The law of independent assortment help as well.
Lack of exchange of genetic information.
The two main sources of genetic variation are gene shuffling and mutations. A mutation is a process wherein the structure of a gene is altered.
inherited - from you parents or grandparents and so on. enviromental - from your environment
maps ,artifacts
The main source of genetic variation is a large population with a large gene pool.
Each of the two chromatids normally contains the same genetic information.
Genetic drift