Years Flashcards
Mendal experiment on garden pea
1856 - 1863 7 Years
Mendal published his work
1865
De Vries , Correns and Von Tschermark independently re-discovered Mendel’s results
1900
Chromosome movement during meiosis has been worked out
1902
Fredrick Griffith transforming experiment with streptococcus pneumoniae (diplococcus)
1928 [1928 : 1952 : 1958]
Family planning programme started in India
1951 [1951 : 1971]
Hershey and Chase experiment on bacteriophage or bacterial virus gives unequivocal proof that DNA is the genetic material.
1952
Watson & Crick double helical structure of B-DNA & replication scheme
1953
Meselson & Stahl work on E.coli proves semiconservative replication of DNA in prokaryotes
1958
2 emzyme responsible for restricting growth of bphage in E.coli were isolated
1963 [1963 : 1972]
whittaker five kingdom classification
1969
govt. of India legalized MTP
1971
Stanely Cohen 7 Herbert Boyer formed 1st recombinant DNA
1972
Water act
1974
Joint forest management (JFM)
1980
AIDS was 1st reported
1981
Air act
1981 [1981 : 1987]
Eli lily (An american company) produces insulin in E.coli by recombinant DNA technology
1983 [1983 : 1990 : 1997]
Environment protection act
1986
Montreal protocol held in Montreal, Cananda
1987
Air act amended to include noise as an air pollutant
1987
Natural forest policy
1988
Montreal protocol effective
1989
1st clinical gene therapy
1990