Cells and Chromosomes
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Transcript of Cells and Chromosomes
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Cells and Chromosomes
Tin Tin Su
University of Colorado
Meads Elementary school visit
Feb 22, 2010
uhaweb.hartford.edu/ BUGL/RBCs.jpg
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All living things are made of cells
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Nathan Sawaya
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missinglink.ucsf.edu
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uhaweb.hartford.edu/ BUGL/RBCs.jpgLike blue Lego Man is made oflots of little blue Lego pieces
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www.microview.org.uk
plants are made of plant cells
dogs are made of dog cells
publications.nigms.nih.gov
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www.justusdogs.com.au
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Fruit flies are made of fruit fly cells
bio.research.ucsc.edu/people/sullivan/
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iml.jou.ufl.edu
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If you look inside each cell, you will find
http://upload.wikimedia.org/wikipedia/commons/thumb/d/df/Drosophila_metaphase_chromosomes.jpg/800px-Drosophila_metaphase_chromosomes.jpg
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Cells in female flies have 2 X chromosomesCells in male flies have one X and one Y
(plus a lot of other chromosomes)public.bay.livefilestore.com
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Fly pictures from: course1.winona.edu
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Mr. Thomas Morgan studied a white eye fruit fly.It was a male. He figured out that it had white eyes because it had a different X chromosome.
X chromosomeen.wikipedia.org
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Chromosomes carry instructions for what cells in your body make or do (like your eye color or proteins to fight off germs)
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www.genome.gov
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When you grow, you need to make more cells
How to make more cells:Take a cell, copy everything in it, split into two
copy Line up
split
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When you grow, you need to make more cells
How to make more cells:Take a cell, copy everything in it, split into two
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Make sure each cell gets a set of chromosomes
From Foley and Sprenger, 2001
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Little protein machines push and pull chromosome copies
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When things go wrong…..
When cells lose chromosomes, they lose information, and can cause diseases like cancer
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dms.dartmouth.edu
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Become a scientist, so you canfigure out what goes wrong and fix it!
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For now, take care of your cells….
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Eat wellExerciseSleep to get restDon’t smokeWear sun-screen