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Friedrich found a protein rich in phosphorus, nuclein, when studying the chemistry of cells.
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Flemming was the first to observe and describe the process in which cells part and double during mitosis.
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Walter Sutton observes the cell division process meiosis and discovered that the sperm and egg nuclei both have half sets of chromosomes.
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Botanist Wilhem Johannsen discoverd the distinction between the phenotype and genotype traits.
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George Beadle and Edward Tatum observed the mold Neurospora crassa and discovered that genes act through chemical events.
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Barbara McClintock observed genes and chromosomes and discovered that genes are able to jump around a chromosome. Before genes were known to have specific places on chromosomes.
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NIH researcher, Joe Hin Tijo, discovers that there are exactly 46 human chromosomes. Before his discovery the exact number was thought to be 48.
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During an experiment, Arthur Kornberg. isolated DNA from an E.Coli bacteria and added a salt solution and discovered that the DNA strands were able to produce new strands.
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mRNA was discovered tp be a molecule from DNA that makes cytoplasm in cells.
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The National Human Genome Research Institute began testing new methods on sequencing the human DNA genome.
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Restriction enzymes, found in bacteria, cut DNA into strands when they infect the DNA.
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Researchers from Standford placed DNA from a African frog into the cell of Bacterium E.Coli and the frog DNA was copied.
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F. Sanger created a new and faster method of DNA sequencing. His method was attaching a marker at the end of every DNA chain much different form the radioactivity method used earlier.
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Scientists discovered a method on how to transfer new and foriegn DNA into animals, the first being mice and fruit flies.
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The polymerase chain reaction primarily speeds the process of genetic reasearch. PCR can make billions of copies of DNA in just a few hours.
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Bacterial Artificial Chromosomes are carriers of DNA. Researchers were trying to find a method on stabilizing them.
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Genetically modified foods were deemed healthy and safe by the FDA.
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The first complete DNA genome, Saccharomyces cerevisiae, otherwise known as yeast was sequenced.
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The bacteria, E.Coli, which lives in the lower intestinal tract had its DNA genome sequenced.
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Chromosome 22 was created which had the power to clone DNA sequences.
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Researchers began searching for a method for the accelreation of DNA genome sequences on humans.