Transcript Cloning
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 Another example of cloning… B C 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-thumbtm.jpg&imgrefurl=http://listverse.com/2007/10/11/10-decades-of-the-20th-century/&usg=__3iXf5a2W2CCStSN9j4ZRYS3hQo=&h=400&w=337&sz=51&hl=en&start=8&sig2=mNc98Tatv06WhDu9ogPIg&tbnid=xWHlt9vKk3FpbM:&tbnh=124&tbnw=104&prev=/images%3Fq%3DDolly%2Bthe%2Bsheep%26gbv%3D2%26nds p%3D20%26hl%3Den%26sa%3DN%26ie%3DUTF-8&ei=OIUdS8LIEsm-lAeM08nyCQ