| A | B |
|---|
| GREGOR MENDEL | known as the Father of Genetics (1822-1884). His studies on pea plant reproduction led him to discover the basic principles of heredity. |
| ROBERT BROWN | described the cell nucleus in 1833. |
| WALTER FLEMMING | observed the division of chromosomes in 1879. |
| WALTER SUTTON | proposed that genes, the units of inheritance, are located on chromosomes |
| WATSON & CRICK | described the three-dimensional structure of DNA |
| ROSALIND FRANKLIN | First woman/ person to use X-ray diffraction to see the DNA helix |
| MAURICE WILKENS | helped discover the structure of DNA with Rosalind Franklin |
| MARTHA CHASE | used radioactivity to study DNA |
| BARBARA MCCLINTOCK | Discovered the ability of genes to change positions on the chromosome when studying corn kernel color. |
| KARL CORRENS | discovered incomplete dominance |
| REGINALD PUNNETT | devised the idea of the Punnett Square |
| THOMAS HUNT MORGAN | discovered that chromosomes control traits when he studied white eyed male mutant drosophila |
| FRIEDICH MEISCHER | discovered DNA, called nuclein, extracted from pus filled bandages |
| NUCLEIC ACIDS | controls traits and inheritance |
| TRAITS | different physical characteristics |
| HEREDITY | the passing of traits from parents to offspring |
| GENETICS | scientific study of heredity |
| CHROMOSOMES | structures in the cell that have DNA |
| GENE | segment of DNA ladder |
| TRAITS | a characteristic that an organism can pass on to its offspring through its genes |
