# data[].attributes.body
American biologist and geneticist who was one of the first scientists to find that sex is determined by a particular configuration of chromosomes.
In 1900 she observed that male mealworms produced two kinds of sperm, one with a large chromosome and one with a small chromosome.

# data[].attributes.body
Gregor Mendel, known as the "father of modern genetics," was born in Austria in 1822. A monk, Mendel discovered the basic principles of heredity through experiments in his monastery's garden. His experiments showed that the inheritance of certain traits in pea plants follows particular patterns, subsequently becoming the foundation of modern genetics and leading to the study of heredity.

# data[].attributes.body
Martha Chase was an American geneticist. In 1952, during the “Hershey-Chase Experiments,” she accompanied Alfred Hershey, helping to experimentally confirm that DNA, not protein, is the genetic material of life. Being listed as a co-author, which was not very common practice as a research assistant, it is believed she played a key role in their discoveries.

# data[].attributes.body
Canadian-born American bacteriologist whose research helped ascertain that DNA is the substance responsible for heredity, thus laying the foundation for the new science of molecular genetics. His work also contributed to the understanding of the chemistry of immunological processes. His theory was originally met with skepticism but once the role of DNA was proved, his contributions to genetics were recognized

# data[].attributes.body
Erwin Chargaff’s research paved the way for the discoveries of DNA’s structure and its method of replication.
His observation that DNA varies from species to species made it highly credible that DNA was genetic material.
He made 2 main rules in his lifetime and they were named chargaff's rule

# data[].attributes.body
In 1869, Friedrich Miescher isolated "nuclein," DNA with associated proteins, from cell nuclei. He was the first to identify DNA as a distinct molecule.

# data[].attributes.body
Dolly was a female domestic sheep, and the first mammal cloned from an adult somatic cell, using the process of nuclear transfer.

# data[].attributes.body
Watson and Crick worked together on studying the structure of DNA, the molecule that contains the hereditary information for cells. In April 1953 they published their discovery of the DNA double-helix.

# data[].attributes.body
Rosalind Franklin is best known for her contributions to the discovery of the molecular structure of deuxyribonucleic acid (DNA) Her work laid the foundation for James Watson and Francis Crick later.