https://padlet.com/3128893/8ebtvxp1z68tg44z Made by Lauren Barrineau en-us 2020-11-24 15:27:06 UTC 2025-11-01 02:01:21 UTC hello@padlet.com 3128893 https://padlet.com/3128893/8ebtvxp1z68tg44z/wish/956616041 Famous for his experimental research with the fruit fly, by which he established the chromosome theory of heredity. He showed that genes are linked in a series on chromosomes and are responsible for identifiable, hereditary traits]]> 2020-11-24 15:28:37 UTC https://padlet.com/3128893/8ebtvxp1z68tg44z/wish/956616041 3128893 https://padlet.com/3128893/8ebtvxp1z68tg44z/wish/956626813 British bacteriologist whose 1928 experiment with bacterium was the first to reveal the “transforming principle,” which led to the discovery that DNA acts as the carrier of genetic information.]]> 2020-11-24 15:30:55 UTC https://padlet.com/3128893/8ebtvxp1z68tg44z/wish/956626813 3128893 https://padlet.com/3128893/8ebtvxp1z68tg44z/wish/956640590 The Avery–MacLeod–McCarty experiment was an experimental demonstration, reported in 1944 by Oswald Avery, Colin MacLeod, and Maclyn McCarty, that DNA is the substance that causes bacterial transformation.]]> 2020-11-24 15:33:55 UTC https://padlet.com/3128893/8ebtvxp1z68tg44z/wish/956640590 3128893 https://padlet.com/3128893/8ebtvxp1z68tg44z/wish/956648979 He noticed that DNA – whether taken from a plant or animal – contained equal amounts of adenine and thymine and equal amounts of cytosine and guanine.]]> 2020-11-24 15:35:44 UTC https://padlet.com/3128893/8ebtvxp1z68tg44z/wish/956648979 3128893 https://padlet.com/3128893/8ebtvxp1z68tg44z/wish/956658893 Hershey and Chase concluded that DNA, not protein, was the genetic material. They determined that a protective protein coat was formed around the bacteriophage, but that the internal DNA is what conferred its ability to produce progeny inside a bacterium.]]> 2020-11-24 15:37:49 UTC https://padlet.com/3128893/8ebtvxp1z68tg44z/wish/956658893 3128893 https://padlet.com/3128893/8ebtvxp1z68tg44z/wish/956663680 Rosalind Franklin obtained images of DNA using X-ray crystallography, an idea first broached by Maurice Wilkins. Franklin's images allowed James Watson and Francis Crick to create their famous two-strand, or double-helix, model.]]> 2020-11-24 15:38:51 UTC https://padlet.com/3128893/8ebtvxp1z68tg44z/wish/956663680 3128893 https://padlet.com/3128893/8ebtvxp1z68tg44z/wish/956681028 Watson and Francis H.C. Crick announce that they have determined the double-helix structure of DNA, the molecule containing human genes. According to their findings, DNA replicated itself by separating into individual strands, each of which became the template for a new double helix.]]> 2020-11-24 15:42:31 UTC https://padlet.com/3128893/8ebtvxp1z68tg44z/wish/956681028 3128893 https://padlet.com/3128893/8ebtvxp1z68tg44z/wish/956686529 The experiment done by Meselson and Stahl demonstrated that DNA replicated semi-conservatively, meaning that each strand in a DNA molecule serves as a template for synthesis of a new, complementary strand. Although Meselson and Stahl did their experiments in the bacterium E.]]> 2020-11-24 15:43:39 UTC https://padlet.com/3128893/8ebtvxp1z68tg44z/wish/956686529