How to be a Breast Cancer Detective.
From Inside Cancer Wiki
How to be a Breast Cancer Detective.
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Lesson Overview
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The lesson begins with interpreting familial pedigree charts and continues with steps in the identification of the genes responsible for some breast cancers. It continues with gene analysis and identification of the mutations through bioinformatics techniques.
Goals and Objectives 1) understand the process by which genes of parents are transferred to their offspring. 2) understand the difference between a dominant and recessive trait and understand how the presence of a trait may effect the physical characteristics of an individual. 3) read and/or construct a pedigree chart mapping a specific trait in a family. 4) determine the probability of a certain phenotype being expressed in an individual.
Common Misconceptions
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The Lesson
Preparation Before class: (materials, handouts etc.) Part 1. Introduction to Pedigree charts (handout)Highlighters, pens, pencils, books, chalkboard, and 1 computer with LCD projector and sound system Part 2: Computer classroom; one computer per student, LCD projector,sound system
During class Begin by using PowerPoint presentation
Mary Claire king: Finding brca1 and 2 by pedigree- http://www.dnai.org/media/a/king296¬04.swf
Time required
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Student Handouts for the Lesson Plan
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Alternative Assessments
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Suggestions for Extended Learning
• Webster K Cavenee and Raymond L. White, “The Genetic Basis of Cancer,” Scientific American, March 1995. • Robert Cooke, Dr. Folkman’s War: Angiogenesis and the Struggle to Defeat Cancer • Jerome Groopman, “The Thirty Years’ War,” The New Yorker (June 4, 2001) • Matt Ridley, Chapter 17 in Genome: Autobiography of a Species in 23 Chapters • Robert Weinberg, One Renegade Cell • Lisa Yount, Cancer • Time and Newsweek cover articles on cancer topics • American Cancer Society: http://www.cancer.org • National Cancer Institute: http://www.nci.nih.gov • National Childhood Cancer Foundation: http://www.nccf.org • Oncolink: http://www.oncolink.upenn.edu • NOVA’s program on Judah Folkman, Cancer Warrior: http://pbs.org/wgbh/ nova/cancer
Glossary Allele—an alternate form of a gene. Chromosome—structure in the cell nucleus that stores and transmits genetic information. Gene—unit of heredity. Genotype—Allelic status of an organism for a genetic trait. Heterozygous—having different alleles of a gene. Homozygous—having indistinguishable alleles of a gene. Pedigree—diagram showing the expression of a specific characteristic and the biological relationships among members of a family, often of several generations. Phenotype—the observable organism, the expression of a genetic trait.
Education Standards
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Teacher Answer Key
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