Biological Science

Chapter 11: How Do Genes Work?

Research Links

Chapter 11 introduced you to DNA as the hereditary material of living things, and it provided examples of how an understanding of gene function can aid us in understanding heritable disease. The Websites below can help you learn more about the experiments that led to our current understanding of genes as heritable material.


11.1 DNA as the Hereditary Material

Oswald Avery
This site describes the life and work of Oswald Avery, one of the leading researchers in the early days of molecular biology. Avery's simple experiments showed that nucleic acids, as opposed to proteins, were the physical component of heritable information. Follow the links to the Avery Collection to read some of his early papers, as well as correspondence to other well-known early molecular biologists.
Keywords: Avery, DNA, transformation

Flybase
This site is a huge source of information about the genetics and molecular biology of Drosophila, drawing its data and literature from the Drosophila Genome Project and current journals. Follow the links to see how the molecular characteristics of the Drosophila genome relate to the transmission of genetic information.
Keywords: Drosophila, genetics, traits


11.2 What Do Genes Do?

Timeline of Work in Molecular Biology
This set of pages describes the milestones in the history of molecular biology. Follow the links to see how researchers slowly put together the puzzle of the structure, function, and biochemistry of heredity.
Keywords: history, DNA, molecular biology

Featured Genes
This site, from the National Center for Biotechnology Information, provides a selected list of human diseases, the genes known to be associated with the disease symptoms, and the locations of the genes in the human genome. Many of the genes and associated diseases have links to medical information and organizations dedicated to battling the disease.
Keywords: disease, chromosomes, mutation

11.3 The Genetic Code

Base Pairing in DNA
This site, from George Mason University, provides a great overview of biochemistry and associated enzymes of DNA. Follow the "Watson–Crick Model" link to read the famous paper in which James Watson and Francis Crick laid out their argument for the structure of DNA, ending with the now-famous comment, "It has not escaped our notice that the specific pairing we have postulated immediately suggests a possible copying mechanism for the genetic material."
Keywords: DNA, double helix, base pairing

The Invention of the Genetic Code
This article describes some of the history of the quest to understand the structure and function of nucleic acids and the genetic code. Throughout the article there are interesting explanations of some of the discarded hypotheses that were investigated—including some by the famous physicists of the 20th century, such as Richard Feynman and Edward Teller.
Keywords: DNA, double helix, history


11.4 The Central Dogma of Molecular Biology

National Human Genome Research Institute
This site provides information on current research and issues related to the sequencing and understanding of the human genome. "In the News" provides links to the latest findings in the quickly changing field of molecular biology.
Keywords: research, genetics, human genome





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