Keywords: 
• 遗传 /
• 基因组 /
• 核酸 /
• 蛋白质 /
• 分子机器

Abstract: Since the automation of DNA sequencing technology,after about a decade the Human Genome Project is going to be fulfilled within the next year.From a physical point of view,an organism is an assembly of multiple levels of information,energy and material transformation systems working on the single molecule level.Information about the organism's development and heredity is encoded in the base sequence of linear molecules:nucleic acids.Each gene is a piece of nucleic acids encoding a protein,which is the main type of component of molecular machines.The complete sequencing of human genome signals the beginning,not the end of the road towards decoding life's secret.Yong physicists should actively participate in exploring the nature of life.