large-scale industrial production of penicillin in p>1943
1944 .t. Avery and others proved that DNA is genetic material by experiments
1953 J.D. Watson and F．H．C．Crick discovered the double helix structure of DNA
1961-1966 deciphered the genetic code < A ⅱ restriction endonuclease
1972 DNA recombination technology was established
1975 g.j.f. Kohler and C．Milstein established hybridoma technology
1976 DNA sequencing technology was born
1978 produced genetically engineered insulin for the first time
198 The US Supreme Court ruled that genetically engineered products could be patented
198. The first transgenic animal (mouse) was listed on NASDAQ in p>1981. Birth
Livestock vaccine produced by DNA recombination technology was listed in Europe for the first time
In p>1983, artificial chromosomes were successfully synthesized for the first time
In p>1985, gene fingerprinting technology appeared in court for the first time as evidence
In 1986, the first genetically modified crop was approved for field test
In 1986, the first human vaccine (hepatitis B vaccine) was recombined with DNA. Successful development
1988 PCR technology came out
1989 transgenic insect-resistant cotton was approved for field test
199 the first somatic cell gene therapy test was approved in the United States
199 the human genome project was officially launched
199 the first transgenic animal (salmon) was approved for breeding
1993 BIOengineering Industry Organization (Bio). Established
Transgenic fresh-keeping tomatoes were listed in the United States in p>1994
Dolly, the first cloned sheep, was cultivated in Britain in p>1997
The human embryonic stem cell line was established in p>1998
The working frame of human genome in p>2 was completed
The gene map of rice, an important food crop in p>21, was completed in China
The sequencing of human genome in p>23 was completed.