Timeline in Biology
A Coggle Diagram about 520 BC – Alcmaeon of Croton distinguished veins from arteries and discovered the optic nerve., 1600 – Jan Baptist van Helmont performed his famous tree plant experiment in which he shows that the substance of a plant derives from water, a forerunner of the discovery of photosynthesis., 1768 – Lazzaro Spallanzani again disproved spontaneous generation by showing that no organisms grow in a rich broth if it is first heated (to kill any organisms) and allowed to cool in a stoppered flask. He also showed that fertilization in mammals requires an egg and semen., 1801 – Jean-Baptiste Lamarck began the detailed study of invertebrate taxonomy., 1902 – Walter Sutton and Theodor Boveri, independently proposed that the chromosomes carry the hereditary information., 1952 – Alfred Hershey and Martha Chase showed that DNA is the genetic material in bacteriophage viruses.
1952 – Rosalind Franklin concluded that DNA is a double helix with a diameter of 2 nm and the sugar-phosphate backbones on the outside of the helix, based on x ray diffraction studies. She suspected the two sugar-phosphate backbones have a peculiar relationship to each other. and 1990 – French Anderson et al. performed the first approved gene therapy on a human patient
1990 – Napoli, Lemieux and Jorgensen discovered RNA interference (1990) during experiments aimed at the color of petunias.
1990 – Wolfgang Krätschmer, Lowell Lamb, Konstantinos Fostiropoulos, and Donald Huffman discovered that Buckminsterfullerene can be separated from soot because it is soluble in benzene.