🔰IMPORTANT YEAR'S 🔰 ☆☆☆☆☆☆☆☆☆☆☆☆☆☆☆☆☆☆ ❤1856 - 1863: Mendal experiment on garden pea. (7 years) 💛1860 : Julius von Sachs - Developed hydroponics. 🧡1865: Mendal published his work, 💚1866 : Langdon Down - Down's syndrome. 💜1869 : Friedrich Meischer - Ist identified DNA and named it nuclei. 🤎1891 ; Henking - Discovered X-body. 🖤1891 : Fossil discovered in Java - Homo erectus. 💙1892 : Ivanowsky - Discovered virus. ❤1898: Beijerinek - Contagium vivum fluidum (infectious living fluid). 💙1898 : Camillo Golgi - Discovered (observed) G.B. 🖤1900: de Vries, Correns and von Tschermak independentlyrediscovered Mendel’s results. 🤎1902 : Chromosome movement during meiosis has been worked out. 💜1905: Law of limiting factor (Blackmann). 💚1928; Fredrick Griffith - Transforming experiment with Streptococcus pneumoniae (Diplococcus). 🧡1935 ;Stanley - Crystallised viruses. 💛1937 ; Ramdeo Misra obtained Ph.D. in Ecology from Leeds university (U.K,). ❤1938 ; Coelocanth fish caught in South Africa. ❤1945 ; Fleming, Chain & Florey - Awarded Nobel prize. 💙1950 ; Watson obtained Ph.D. on a study of the effect of hard X-rays on bacteriophage multiplication, 🖤1951 ; Family planning programme started in India. 🤎1952 ; Hershey & Chase-experiment on bacteriophage or Bacterial virus gives unequivocal proof that DNA is the genetic material. 💜1953 ; Miller experiment - Methane, ammonia, hydrogen & water vapour, 💚1953 ; Watson & Crick - Double helical structure of B-DNA & replication scheme. 🧡1953 ; Palade : Discovered ribosome. 💛1954 ; Ramachandran - Triple helical model of collagen, published in Nature, ❤1954 ; Crick completed Ph.D. on a thesis “X-rays diffraction : polypeptides and proteins. 💙1958 ; Meselson & Stahl - Work on £.coli proves semiconservative replication of DNA in prokaryotes, 🖤1958 ; Taylor - Work on Vicia faba proves semiconservative replication of DNA in eukaryotes, 🤎1960. Katherine Esau - Published “Anatomy of Seed Plants.” 💜1961. Melvin Calvin - Nobel Prize. 💚1962. Watson, Crick and Wilikins - Nobel Prize. 🧡1963. Wheat varieties (Sonalika & Kalyan sona) introduced. 💜1963  Two enzyme responsible for restricting growth of bacteriophage in E.coli were isolated. 💛1966. Derivative of IR-8 & Taichung native-I introduced. ❤1969; Whittaker - Five kingdom classification. 💙1971: Govt. of India legalized MTP. 🖤1971. Diener- Discovered Viroid(free RNA without capsid). 🤎1972  Singer & Nicolson - Fluid mosaic model. 💜1972  Stanley Cohen & Herbert Boyer - Formed Ist recombinant DNA. 💚1972  Establishment of NCEPC - National Committee for Environmental Planning & Coordination. 🧡1974: Water act. 💛1980  Joint forest management, (JFM). ❤1981 AIDS was 1st reported. ❤1981  Air act. 💙1992: The Earth summit : Rio de Janeiro. 🖤1997: Ist transgenic cow- Rosie. It produces human protein enriched milk (2.4 grams per litre). The milk contain the human alpha-lactalbumin 🖤1997 : An American company got patent rights on Basmati Rice. 💙1997: Kyoto protocol: Held in Kyoto(Japan). ❤2002 : World summit. Held in Johannesburg (South Africa). 💛2002 : All buses of Delhi were converted by CNG. 💚2005 : Nobel prize of chemistry given to ‘Green chemists’ Chauvin, Grubbs & Schrock. 💜1770 ; Joseph Priestley - Essential role of air in growth of green plant 💜1774 : Joseph Priestley - Discovered Oxygen 💚1831; Robert Brown - 1st discovered and described nucleus. 💛1838 : Schleiden (German Botanist) - Work on plants. 💙1839 : Schwann(British Zoologist) - Work on both plants & animals. ❤1855: Rudolf Virchow - Omnis cellula-e-cellula (cells arises from pre-existing cells). ╔══════════════════╗ 🟥   @shahidmicky🟥 ╚══════════════════╝ ☆☆☆☆☆☆☆☆☆☆☆☆☆☆☆☆☆☆