genetically modified organisms (carrie)
TRANSCRIPT
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EVERYDAY SCIENTISTS: DNA, HEREDITY &
GENETICS
Carrie L. Schlagler
Teaching & Learning Science – SUNY Empire State CollegeMarch 18, 2012
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Our Unit Goals:
Background picture from http://movies-wayneaddisoncyrus.blogspot.com/2011/03/dna-strand-of-bases.html
DNA, Heredity & Genetics
Structure dictates function
Labs/ActivitiesBuild DNA
model
Lectures/ Discussions
Double HelixCentral Dogma
Genes & Heredity(Classical Genetics)
Labs/ActivitiesFamily
Tree/PedigreeChromonoodle
Punnett Squares
Lectures/ Discussions
History of DNA
Biotechnology &Modern Genetics
Labs/ActivitiesPlasmid lab
Virtual genetics lab
Lectures/ DiscussionsTechnology
Aplplications & Ethics
Students realize that science, including genetics, is part of their everyday lives. Hence, the ‘Everyday Scientist’ theme/narrative.
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Our Lab Goals:
Identify visible and less obvious similarities and
difference between groups of organisms.
Explain how DNA gives rise to physical traits.
Visualize and label parts of a plant cell.
Comprehend genetic engineering techniques.
Begin to think about how technology and
science impact society (important part of final unit project – slide#11).
http://www.google.com/imgres?start=285&um=1&hl=en&biw=943&bih=426&tbm=isch&tbnid=MbiibBJvh0oH8M:&imgrefurl=http://www.healingtalks.com/tag/gmos/&docid=4HpvXfmBaJsfPM&imgurl=http://www.healingtalks.com/wp-content/uploads/2011/11/California-GMO-labelling-initiative-is-filed.jpg&w=640&h=360&ei=duljT4eeCaP30gGLyPGwCA&zoom=1
Genetically Modified
(GM)?
NonGenetically Modified (nonGM)?*GM vs. nonGM NOT
stated for students*
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Similarities & DifferencesPhysical Traits
• Size• Shape• Mass• Color• Smell
Pictures from MS Office ClipArt
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Similarities & DifferencesCellular• Slide prep• Microscope skills• Plant biology
Genetic• Genome size• Genetic manipulation
• Mutations• Engineering/Biotechnology
• Gel Electrophoresis• DNA fragment size• Restriction enzymes
http://oceanexplorer.noaa.gov/explorations/03bio/background/molecular/media/gel_plate.html
http://www.shutterstock.com/pic-75603784/stock-photo-female-researcher-loads-genomic-dna-samples-for-pcr-analysis.html
Picture from MS Office Clip Art
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Students Design Spreadsheet for Data Collection
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Students Brainstorm Ways to Analyze their DNA Samples
DNA Samples
Proper sample handling
UncutWhere should we
expect bands?
Restriction Enzyme Digestion
Which enzymes should we use?
Heat & pH treatedHow do the different
samples react?
Gel Electrophoresis
Why do DNA pieces separate?
QUESTIONSEXPERIMENTS
FUN!!!
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Sample Analysis: Physical Observations
A B
B
http://www.huffingtonpost.com/2010/01/12/monsantos-gmo-corn-linked_n_420365.html
http://greenbeandelivery.com/healthytimes/foodnutrition/genetically-modified-organisms/
http://www.cosmosmagazine.com/features/online/2269/gm-crops-solution-world-food-crisis
http://www.bbc.co.uk/news/business-11368657
http://www.biotech-weblog.com/50226711/genetically_modified_soy_in_russia.php
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Sample Analysis:
Retrieved on March 15, 2012 from http://www.truevisionmicroscopes.com/40x-400x-compound-monocular-biological-microscope-45-degree-angled-head/
Picture from MS Office Clip Art
CELLULAR DNA/GENETICS
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Possible Class Conclusions
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Ethics, Society & Science:GMO Research Project
•Literature research•Group presentation•Peer evaluation•Rubric-based assessment
Pros & Cons of
genetics
•Individual work•Argue both sides •Defend opinion•Common Core
http://www.savagechickens.com/2009/07/genetic-ethics.html
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Resources for the DNA, Heredity, & Genetics Unit (PDF links)
Lab Lesson
Lab Report
Spreadsheet