Genomics is a science that studies the structure and function of biological genome. Its main research contents include genome sequencing, genome mapping, genome expression and genome evolution.

Genome sequencing: this is the basic work of genomics research, aiming at determining the DNA sequences of all genes in organisms, including coding regions and non-coding regions of genes. Through genome sequencing, we can find new genes and their interactions, and further understand the relationship between genes and diseases, traits and so on.

Genome mapping: Genome mapping is the process of constructing genome map, including physical map, genetic map and transcription map. These maps can provide information on gene location, replication and transcription, and help us understand the overall structure and function of the genome.

Genome expression: Genome expression studies the expression of genes in organisms at different times and in different environments. By studying the regulation mechanism of gene expression, we can understand the complexity and diversity of life more deeply.

Genome evolution: Genome evolution studies the variation and evolution of genomes among biological populations and within biological populations. By comparing the genomes of different organisms, we can find traces and laws of evolution, and further understand the origin and evolution process of biodiversity.

Besides the above four aspects, genomics also involves many other research contents, such as genome editing and transformation, gene diagnosis and gene therapy. With the continuous development of sequencing technology and computer technology, the research of genomics will continue to deepen, which will provide more enlightenment and help for us to better understand life phenomena and solve life science problems.