In 1934, Oswald Avery (1877–1955), a Rockefeller Institute microbiologist, underwent surgery for Graves disease. Avery recovered from his thyroidectomy and returned to the laboratory, where he began trying to identify the “transforming principle.” This substances, produced by Pneumococcus bacteria, ...
Alternative splicing, however, did not in itself require a drastic reappraisal of the notion of a gene; it just showed that some DNA sequences could describe more than one protein. Today's assault on the gene concept is more far reaching, fuelled largely by studies that show the previously ...
Oswald Avery, Colin MacLeod, and Maclyn McCarthy confirm that bacteria can transform and they identify DNA as the transforming principle 1944: Barbra McClintock discovers “jumping genes,” what we now call “transposons” or “mobile genetic elements” in maize 1944: Albert Schatz isolates the ant...
clearly demarcated segment of DNA, but they also led to a flurry of research activity, with scientists curious about whether the same was true in otherspecies. As other researchers were quick to discover, discontinuous gene structure and splicing duringRNA processingare the norm...