ES+Work+for+Genetics

Nicole A.V Doyle Jonathon/Science __ES Work for Genetics __ __Task: __ IN THE NEWS

EXTRA! EXTRA! You are a news reporter for WGEN and a new story has broken. You are assigned to cover the story in which scientists clone a sheep named Dolly! As the reporter, do some background research of cloning (What is it? What is the process), and how the scientists created Dolly. Also, include some information about Dolly’s life. __Project: __

Hello, my name is Nicole Doyle and today I will be giving you the latest news on the first animal clone named, Dolly! The news of Dolly spread around the world within hours. Dolly, the first cloned lamb, was born in a shed in Scotland on July 5, 1996. If you don’t already know cloning is an exact copy of a living thing which is why this process for scientists is so hard because scientists would need an exact copy of DNA to clone a living thing. You are probably thinking, but if scientists can clone bacteria then why can’t they clone humans? Well, bacteria can carry all of their DNA on one chromosome because they do not need many instructions about growing unlike humans who have millions of cells which need exactly 46 chromosomes and it’s easier to clone one-cell then millions. DNA (which you have millions of) is a very complicated chemical called, deoxyribonucleic acid. This is a code that tells living things what they will look like, what they should eat, and how they should grow. But, now that Dolly has been cloned and scientists know the procedure of cloning other animals and humans will be now be cloned. Scientist cloned Dolly by first taking some cells from an udder. (Aside from red blood cells, the only cells scientists cannot use are eggs or sperm cells because they only have half of the DNA needed.) Second, scientists had to make sure that the DNA cells they took from the udder is not switched off anymore by using the cell cycle. Third, scientists now had a cell with all the DNA working properly so they needed an egg to put into it. Fourth, scientists got an egg but now scientists had a nucleus with some DNA in it which needs to be taken out. If not taken out then there will be too many genes and things would go wrong. Fifth, now since scientists have an egg with no nucleus and a cell that they can clone they can put the cell nucleus into the egg. Now, the egg is ready to grow into a new sheep. Sixth, scientists placed the egg into a surrogate mother which is another female sheep, so that it can grow.

 Hi, I am Nicole Doyle and I am here with breaking news! Dolly, the first cloned sheep, lived 6 years until after a veterinary examination showed that she had a progressive lung disease. Eventually scientists of the Roslin Institute, the Scottish research center that created Dolly, confirmed that the first cloned sheep, had died from lung disease. Bibliography: How To Clone A Sheep By: Hazel Richardson [] []

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