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GREGOR JOHANN MENDEL (1822 – 1884 ) :     Biography:- ·          Johann Mendel was born on 22 nd July 1822 in a village called Heinzendorf. ·          His father was Austrian poor farmer. ·          Mendel’s education began in an upper elementary school in Leopnik, the place about 22 km. away from his village. ·          He was clever and sent to the Traphan high school in 1834. ·          He completed his graduation with good record in 1840 . ·          He joined the “ philosophical Institute at olmitz in 1843 . ·          He joined the university of vienna in 1850 . ·          In 1854, he joined the Brun modern school as a teacher and taught mathematics & natural science. ·          He began his famous hybridization experiments on garden pea plant in 1856. ·          He performed experiment on pea plant ( Pisum sativum ) for 8 years. ·          He presented his work in paper entitled “ Experiments in plant hybridization ” at the meeting of the N