Genes were unknowingly discovered in the 19th century by Gregor Mendel a Czechoslovakian monk. It was later established that genes are made of DNA a biological compound found in tiny threadlike structures called chromosomes that are located in the nuclei of all cells in our bodies. DNA consists of chains of entities called bases of which there are four in nature. DNA consists of long chains of bases sometimes referred to as DNA sequences that are joined in any order but the precise order and le