Resultado de búsqueda
Hace 2 días · Rosalind Elsie Franklin (25 July 1920 – 16 April 1958) [1] was a British chemist and X-ray crystallographer whose work was central to the understanding of the molecular structures of DNA (deoxyribonucleic acid), RNA (ribonucleic acid), viruses, coal, and graphite. [2] .
Hace 4 días · DNA, organic chemical of complex molecular structure found in all prokaryotic and eukaryotic cells. It codes genetic information for the transmission of inherited traits. The structure of DNA was described in 1953, leading to further understanding of DNA replication and hereditary control of cellular activities.
Hace 1 día · James Dewey Watson (born April 6, 1928) is an American molecular biologist, geneticist, and zoologist. In 1953, he co-authored with Francis Crick the academic paper proposing the double helix structure of the DNA molecule.
Hace 3 días · The structure of DNA was studied by Rosalind Franklin and Maurice Wilkins using X-ray crystallography, which led James D. Watson and Francis Crick to publish a model of the double-stranded DNA molecule whose paired nucleotide bases indicated a compelling hypothesis for the mechanism of genetic replication.
Hace 1 día · The discovery of DNA's double-helical structure in the 1950s was perhaps the most significant biological accomplishment of the 20th century. Knowledge of this remarkably clever structure, involving two complementary strands of DNA that each provide the template for making the other strand, provided a key insight about how it was that ...
Hace 2 días · It was the third work of that Nature trilogy on DNA in 1953. But then Franklin’s contributions were overshadowed.” Franklin could have been worthy of two Nobel Prizes, according to Lamas. “Because in addition to working on the structure of DNA, he applied X-ray crystallography to determine virus structures of interest for agriculture”.
Hace 3 días · Chromosomes are threadlike structures made of protein and a single molecule of DNA that serve to carry the genomic information from cell to cell. In plants and animals (including humans), chromosomes reside in the nucleus of cells.
