what experiments did he initiate?
After initial experiments with pea plants, Mendel settled on studying seven traits that seemed to be inherited independently of other traits: seed shape, flower color, seed coat tint, pod shape, unripe pod color, flower location, and plant height.
Gregor Mendel
After initial experiments with pea plants, Mendel settled on studying seven traits that seemed to be inherited independently of other traits: seed shape, flower color, seed coat tint, pod shape, unripe pod color, flower location, and plant height. 
where are genes found in a cell and what are they composed of It is a sequence of nucleotides in DNA or RNA. who discovered it? Gregor Mendel where did he belong to? Brno, Margraviate of Moravia. what did he start his career as? He entered as the Faculty of Philosophy.
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Gregor Mendel [SEP] Experiments on plant hybridization
Gregor Mendel, known as the "father of modern genetics", chose to study variation in plants in his monastery's experimental garden. After initial experiments with pea plants, Mendel settled on studying seven traits that seemed to be inherited independently of other traits: seed shape, flower color, seed coat tint, pod shape, unripe pod color, flower location, and plant height. He first focused on seed shape, which was either angular or round. Between 1856 and 1863 Mendel cultivated and tested some 28,000 plants, the majority of which were pea plants ("Pisum sativum"). This study showed that, when true-breeding different varieties were crossed to each other (e.g., tall plants fertilized by short plants), in the second generation, one in four pea plants had purebred recessive traits, two out of four were hybrids, and one out of four were purebred dominant.