Introduction - If you have any usage issues, please Google them yourself
A population consists of a certain number of individuals encoded by a gene. Each individual is actually an entity with a chromosome. Chromosome as a major carrier of genetic material, that is, a collection of multiple genes, the internal performance (ie, genotype) is a combination of certain genes, which determine the external shape of the individual performance, such as the characteristics of black hair is controlled by the chromosome A combination of certain characteristics of a gene.