Gene Structure and Gene Action. The lecturer of this film is G. W. Beadle of Cornell University. The Watson-Crick structure of DNA is discussed in terms of mutation. Several tests of the chain separation hypothesis for DNA replication are described (experiments with heavy DNA, radioactive chromosomes, and the replication of DNA in vitro). This working hypothesis is presented: The coded information in DNA is transferred to RNA, which serves as a template for polypeptide synthesis.
| PHOTO CREDITS | |
|---|---|
| Dr. Asimov’s photograph by David R. Phillips, courtesy Chemical and Engineering News | |
| Page | |
| [4] | James German, M.D. |
| [6] | Bausch & Lomb, Inc. |
| [12] | James German, M.D. |
| [20] | Indiana University |
| [24] | Robert C. Filz, Air Force Cambridge Research Laboratories |
| [25] | J. K. Boggild, Niels Bohr Institute, Copenhagen University |
| [26] | Brookhaven National University |
| [28], [31] | Herman Yagoda, Air Force Cambridge Research Laboratories |
| [41] | Oak Ridge National Laboratory |
Footnotes
[1]For more detail about cell division, see Radioisotopes and Life Processes, another booklet in this series.
[2]This is more commonly known as “Mongolism” or “Mongolian idiocy” though it has nothing to do with the Mongolian people.
[3]Actually, all waves have some of the characteristics of particles and all particles have some of the characteristics of waves. Usually, however, the radiation is predominantly one or the other and little confusion arises under ordinary circumstances in speaking of waves and particles as though they were separate phenomena.
[4]For more about this subject, see Radioisotopes in Industry and Radioisotopes in Medicine, companion booklets in this series.
[5]For more about this subject, see Fallout from Nuclear Tests, another booklet in this series.
[6]For details on somatic effects of radiation, see Your Body and Radiation, a companion booklet in this series.
[7]Estimated average exposures to the gonads, based on 1963 report of Federal Radiation Council.