Theory/ Hypothesis and their profounder

a) Cell linease theory: R. Virchow (1855)

b) Cell theory: M. J. Schleiden and T. Schwann ( 1938-1939)

c) Chiasmatype or one plane theory: F.A. Janssens ( 1904-1924)

d) Classical or two plane theory: Sharp ( 1934)

e) Evolution through natural selection : C. Darwin and A.R. Wallace

f) Inheritance of acquired character: J.B de Monet Lamark ( 1809)

g) Multiple factor hypothesis : H. Nilsson-Ehle (1909)

h) One gene one enzyme: G.W Beadle and E.L Tatum ( 1941)

i) One gene one polypeptide : V M. Ingram ( 1957)

j) Pure line theory: K.L. Johannsen ( 1909)