connect! what is a “clone”? would you want to be cloned? how could cloning be useful?
TRANSCRIPT
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Connect!
•What is a “clone”?
•Would you want to be cloned?
•How could cloning be useful?
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3. Cloning:
• Clones are genetically identical copies; bacteria that are genetically engineered reproduce quickly and asexually, thus producing many clones
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• many plants can be cloned from a part of an original plant
• cloning has also been done in animals; the most famous cloned animal is Dolly the sheep
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• scientists insert the nucleus of a normal (2n) body cell into an egg cell stripped of its nucleus which will develop into an embryo
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A
B
C
Another example of cloning…
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Chunk…• What is a clone?• The cloned lamb is identical to which sheep, A, B, or C?• Explain the steps in cloning Dolly.• Why would researchers want a population of cloned lab mice?• What is the risk of having an entire population of clones?• What is wrong in the science in this cartoon?
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• Explain the cartoon above.• How could cloning be used to save endangered
species? Hypothesize…
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Just for Fun - Do you get it?
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Graphics Sources• Star Wars clones - http://repairstemcell.files.wordpress.com/2009/02/star_wars_clone_army.jpg• Bacteria genetic engineering – Pearson• Ace Cloning cartoon-http://www.cartoonstock.com/newscartoons/cartoonists/sde/lowres/sden294l.jpg• Dolly the Sheep – nature.com• Dolly and Mommy - http://images.google.com/imgres?imgurl=http://listverse.files.wordpress.com/2007/10/dolly-the-sheep2-thumb-
tm.jpg&imgrefurl=http://listverse.com/2007/10/11/10-decades-of-the-20th-century/&usg=__3i-Xf5a2W2CCStSN9j4ZRYS3hQo=&h=400&w=337&sz=51&hl=en&start=8&sig2=mNc98Tatv-06WhDu9ogPIg&tbnid=xWHlt9vKk3FpbM:&tbnh=124&tbnw=104&prev=/images%3Fq%3DDolly%2Bthe%2Bsheep%26gbv%3D2%26ndsp%3D20%26hl%3Den%26sa%3DN%26ie%3DUTF-8&ei=OIUdS8LIEsm-lAeM08nyCQ