CHAPTER 7: DNA, Genes,
and Chromosomes
- The Hershey-Chase Blender Experiment
- A description and diagram of the most important thing to
come from a blender since smoothies.
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7.2 DNA STRUCTURE AND REPLICATION
- The Structure of the DNA Molecule
- This site has a brief recounting of the events that led up to the discovery
of the structure of DNA, as well as excerpts from Watson and
Crick's original paper.
- A Visit with Dr. Francis Crick
- Learn more about Watson and Crick's Nobel Prize-winning work
from one half of the illustrious duo.
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- The Human Transcript Map
- Which genes are linked? Pick any of the human chromosomes
and learn the famous genes that have been linked to them. This
is a terrific and colorful site from the National Center for
Biotechnology Information.
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- Gene for Anhidrotic Ectodermal Dysplasia Identified
- Males with the X-linked EDA gene have no sweat glands, which
might be a great thing on a first date, but not under the hot
sun. This article from the Department of Health and Human Services
describes the discovery of this strange genetic disorder and
why its expression in males is different from that in females.
- Chromosome X
- Visit this page to view profiles of some of the more noteworthy
genes to be linked to the X chromosome. The National Center for
Biotechnology Information also has a page for the Y
chromosome.
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- Online Mendelian Inheritance in Man
- This massive resource is primarily used by researchers, but
you can use it to find descriptions and references for any disease
known to have a genetic link.
- Crossing-Over: Genetic Recombination
- What does crossing-over have to do with gene mapping? Read
a brief article on the relationship among crossing-over, gene mapping,
and genetic diversity from Access Excellence. Also visit A
Short History of Mapping to learn about the historical roots
of the Human Genome Project.
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