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1.2: Introduction to Genetics

Difficulty Level: At Grade Created by: CK-12


  1. Continuity and Diversity
  2. Cells and Chromosomes
  3. Chromosomes and DNA
  4. Cell Division
  5. Gene Expression-DNA Codes for Proteins
  6. Expressing Dominant and Recessive Genes
  7. Single Gene Disorders
  8. Other Genetic Conditions and Genetic Counseling
  9. Genetic Engineering
  10. Glossary


H. Craig Heller, Principal Investigator

Mary L. Kiely, Project Director

Text Authors

H. Craig Heller, Angelo Collins

Activity Authors

Stan Ogren, Angelo Collins, Geraldine Horsma, Marjorie Gray

Project Editor

Dennis McKee


  • The Language of Genes Solving the Mysteries of Our Genetic Past, Present and Future by Steve Jones, Anchor Books, published by Doubleday, 1995.

Photo Credits

  • 1 (top center): D. Young-Wolff/Photo Edit
  • 6 (top center): Dr. Dennis Kunkel ! Photo take
  • 9 (top): Drawing from Murray Barr, Biological Science: A Molecular Approach, BSCS Blue Version, 4th ed. (Lexington, Mass.: D.C. Heath, 1980), 306
  • 11 (top center); Claude Revy Jean/Photo take
  • 20 (top center): G. Shih-R. Kessell/Visuals Unlimited
  • 27 (top center): LLNL/Science Source/Photo Researchers, Inc.
  • 31 (top center): UPI/Corbis-Bettmann
  • 41 (top center): Stan Flegler/Visuals Unlimited
  • 42 (top left): Jim Stevenson/Science Photo Library/Photo Researchers, Inc.
  • 47 (top center): Michael Newman/Photo Edit
  • 51 (top center); Associated Press

Originally Published by Everyday Learning Corporation

Everyday Learning Development Staff


Steve Mico, Leslie Morrison, Susan Zeitner


Fran Brown, Annette Davis, Jess Schaal, Norma Underwood

ISBN 1-57039-685-X

Stanford University's Middle Grades Life Science Curriculum Project was supported by grants from the National Science Foundation, Carnegie Corporation of New York, and The David and Lucile Packard Foundation. The content of the Human Biology curriculum is the sole responsibility of Stanford University's Middle Grades Life Science Curriculum Project and does not necessarily reflect the views or opinions of the National Science Foundation, Carnegie Corporation of New York, or The David and Lucile Packard Foundation.

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Date Created:

Feb 23, 2012

Last Modified:

Apr 17, 2015
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