By the end of the 19th century, the first chapter of a powerful new science was all but written. The science was genetics and the critical first chapter concerned the rules, governing transmission of hereditary traits from generation to generation. Genetics is the study of inheritance (heredity) of parental characteristics and of variability of the characteristics of an organism. Variability can occur by genetic change and is in fact the basis of evolution.

The first step in understanding heredity was the work of Gregor Johann Mendel, an Australian monk & philosopher who showed in 1865 that crosses (hybrids) of different garden pea varieties had a definite pattern of inheritance of parental characteristics such as color, shape and other properties of the flower and seeds.

Mendel's research paper remained dormant & unnoticed by the scientific world until 1900. It was in the beginning of 20th century that three botanies, namely Hugo de Vries, working on Oenothera spp, Carl......

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Title: Dna Replication -A Historical Perspective
Approximate Word Count: 540
Approximate Pages: 3 (250 words per double-spaced page)

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