Connect!

•What is a “clone”?

•Would you want to be cloned?

•How could cloning be useful?

3. Cloning:

• Clones are genetically identical copies; bacteria that are genetically engineered reproduce quickly and asexually, thus producing many clones

• 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

• scientists insert the nucleus of a normal (2n) body cell into an egg cell stripped of its nucleus which will develop into an embryo

A

B

C

Another example of cloning…

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?

• Explain the cartoon above.• How could cloning be used to save endangered

species? Hypothesize…

Just for Fun - Do you get it?

                                                                     

        

  

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-

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