E. coli

Genetics: From Genes to Genomes

Figure 4.1a: Gregor Mendel

© National Library of Medicine

Figure 4.1b: Thomas Hunt Morgan

© National Library of Medicine

Table 04.TBL01: A Comparison of DNA and RNA

Figure 4.2a-b: Transformation experiments of Griffith

Figure 4.2c-d: Transformation experiments of Griffith

Table 04.TBL02: The Genetic Codes for Several Amino Acids

Figure 4.3: Determining the function of DNA

Figure 4.4a: James D. Watson and Francis H. C. Crick in 1952

© Cold Springs Harbor Laboratory Archives/Photo Researchers, Inc.

Figure 4.4b: James D. Watson and Francis H. C. Crick more recently

© Ted Spiegel/Corbis

Figure 4.5a: A space-filling model of the DNA molecule

Figure 4.5b: A stylized model of DNA

Figure 4.6: How DNA replicates

Figure 4.7: The transcription process

Figure 4.8: The translation process

Figure 4.9: A summary view of protein synthesis

Figure 4.10: The operon theory of gene regulation

Figure 4.11a: Sequencing methods for determining the base sequence of a molecule of DNA: Traditional method.

Figure 4.11b: Sequencing methods for determining the base sequence of a molecule of DNA: Shotgun method.

Figure 4.12: President Clinton with J. Craig Venter and Francis Collins announcing the draft copy of the human genome

© AP Photos