चैनल का पता:
श्रेणियाँ:
मनोविज्ञान
भाषा: हिंदी
ग्राहकों:
3
चैनल से विवरण
#unofficial_channel of Physics Wallah sir to help students in their preparation for NEET - JEE .
For any help /promotion - @KUNALSHARMA_THENAME_IS_ENOUGH
Ratings & Reviews
Reviews can be left only by registered users. All reviews are moderated by admins.
5 stars
0
4 stars
0
3 stars
1
2 stars
0
1 stars
1
नवीनतम संदेश 12
2022-05-27 16:43:57
https://unacademy.com/a/foundation-a-special-class-series-to-prepare-for-11th-grade.html
130 views13:43
2022-05-27 16:43:24
https://unacademy.com/a/foundation-a-special-class-series-to-prepare-for-11th-grade.html
115 views13:43
2022-05-27 16:42:35
94 views13:42
2022-05-26 21:50:45
Important Points of NCERT FOR LAST TIME REVISION
1. 1770 : Joseph Priestley - Essential role of air in growth of green plant.
2. 1774 : Joseph Priestley - Discovered O2
.
3. 1831 : Robert Brown - Ist discovered and described nucleus.
4. 1838 : Schleiden (German Botanist) - Work on plants.
5. 1839 : Schwann(British Zoologist) - Work on both plants & animals.
6. 1855 : Rudolf Virchow - Omnis cellula-e-cellula (cells arises from
pre-existing cells).
7. Life originate from pre-existing life : Pasteur (Yeast).
8. Life originate from non-living (decaying & rotting matter) : Spontaneous
generation.
9. Life originate from pre-existing non-living organic molecules (RNA,
Protein)- Oparin (Russia) & Haldane (England)- Chemical Evolution.
10. 1856 - 1863 : Mendal experiment on garden pea. (7 years)
11. 1860 : Julius von Sachs - Developed hydroponics.
12. 1865 : Mendal published his work.
13. 1866 : Langdon Down - Down’s syndrome.
14. 1869 : Friedrich Meischer - Ist identified DNA and named it nuclein.
15. 1891 : Henking - Discovered X-body.
16. 1891 : Fossil discovered in Java - Homo erectus.
17. 1892 : Ivanowsky - Discovered virus.
18. 1898 : Beijerinek - Contagium vivum fluidum (infectious living fluid).
19. 1898 : Camillo Golgi - Discovered (observed) G.B.
20. 1900 : de Vries, Corre ns and von Tsche rmak inde pende ntly
rediscovered Mendel’s results.
21. 1902 : Chromosome movement during meiosis has been worked out.
22. 1905 : Law of limiting factor (Blackmann).
23. 1928 : Fredrick Griffith - Transforming experiment with Streptococcus
pneumoniae (Diplococcus).
24. 1935 : Stanley - Crystallised viruses.
25. 1937 : Ramde o Misra obtained Ph.D. in Ecology from Lee ds
university (U.K.).
26. 1938 : Coelocanth fish caught in South Africa.
27. 1945 : Fleming, Chain & Florey - Awarded Nobel prize.
28. 1950 : Watson obtained Ph.D. on a study of the effect of hard X-rays
on bacteriophage multiplication.
29. 1951 : Family planning programme started in India.
30. 1952 : Hershey & Chase-experiment on bacteriophage or Bacterial virus
gives unequivocal proof that DNA is the genetic material.
31. 1953 : Miller experiment - Methane, ammonia, hydrogen & water
vapour.
32. 1953 : Watson & Crick - Double helical structure of B-DNA &
replication scheme.
33. 1953 : Palade : Discovered ribosome.
34. 1954 : Ramachandran - Triple helical model of collagen, published
in Nature.
35. 1954 : Crick complete d Ph.D. on a thesis “X-rays diffraction :
polypeptides and proteins.
36. 1958 : Meselson & Stahl - Work on E.coli proves semiconservative
replication of DNA in prokaryotes.
37. 1958 : Taylor - Work on Vicia faba proves semiconservative replication
of DNA in eukaryotes.
38. 1960 : Katherine Esau - Published “Anatomy of Seed Plants.”
39. 1961 : Melvin Calvin - Nobel Prize.
40. 1962 : Watson, Crick and Wilikins - Nobel Prize.
41. 1963 : Wheat varieties (Sonalika & Kalyan sona) introduced.
42. 1963 : Two enzyme responsible for restricting growth of bacteriophage
in E.coli were isolated.
43. 1966 : Derivative of IR-8 & Taichung native-I introduced.
44. 1969 : Whittaker - Five kingdom classification.
45. 1971 : Govt. of India legalized MTP.
46. 1971 : Diener- Discovered Viroid(free RNA without capsid).
47. 1972 : Singer & Nicolson - Fluid mosaic model.
48. 1972 : Stanley Cohen & Herbert Boyer - Formed Ist recombinant DNA.
49. 1972 : Establishme nt of NCEPC - National Committe e for
Environmental Planning & Coordination.
50. 1974 : Water act.
51. 1980 : Joint forest management, (JFM).
52. 1981 : AIDS was Ist reported.
53. 1981 : Air act.
54. 1983 : Eli Lily (An American company) produces insulin in E.coli by
recombinant DNA technology.
55. 1984 : Establishment of MOEF : Ministry of Environment & Forest.
56. 1986 : Environment Protection Act.
57 1987 : Montreal protocol. Held in Montreal, Canada.
128 views18:50
2022-05-26 20:57:47
105 views17:57
2022-05-26 20:32:47
114 views17:32
2022-05-26 09:59:31
139 views06:59
2022-05-26 09:59:31
Biotechnology Principles and Process.
Join Now: https://t.me/NCERT_WALLAAH
124 views06:59
2022-05-26 08:54:09
115 views05:54
2022-05-25 22:10:53
https://unacademy.com/rankpredictor/jee-main-and-advanced-preparation/TMUVD
125 views19:10
R
