DNA+scientists

=Gregor Mendel (1850s-1860s)= Discovered the recessive trait; know as the "Father of Genetics"; contributed to the theory of heredity based on his work with pea plants. First person to trace the characteristics of generations or generations of living things.

=Thomas Hunt Morgan: (1900)= Thomas discovered where genes are located and the behavior of chromosomes during meiosis accounts for inheritance patterns.

=Walter Sutton (1902)= Walter Sutton figured out that chromosomes are the basis of heredity, and the reduction of chromosomes in meiosis is directly related to " Mendel's Law of Inheritance" An Inheritance pattern for autosomal gene pairs. The genetic trait displayed results from one parents gene dominating over the gene inherited from the other parent.

=Frederick Griffith (1928)= Frederick Griffith tested different strains of pneumonia, virulent and non-virulent. Virulent killed the mice and non-virulent didn't. One test that he conducted with non-virulent and heat-killed virulent pneumonia, killed the mouse because the DNA transferred to the nonvirulent DNA.

=Alfred Hershey and Martha Chase= By separating the protein coating from the nuclei of Bacteriophages; Hershy, and Chase found that nucleic acid not protein causes the transmission of genetic information.

=Rosalind Franklin (1953)= Rosalind Franklin discover the double helix was made of two strands of DNA.

=Watson & Crick (1953)= discovered that the chemical structure of DNA meets the unique requirements for a structure the encodes genetic information.

=Francis Collins (1980's) & Craig Venter ( 1990-1992)= Francis Collins identified genetic defects such as diabetes. Craig Venter created "fake" DNA through all of his studies.