Quiz : Dolly The Sheep

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| By Eorfeuille
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1. Scientists have already cloned a human.

Explanation

The South Korean team that claimed to have cloned a human embryo in 2004 admitted to have only told a part of the truth. We can probably assume the same about Clonaid, the religious group that announced in 2002 that they were raising a baby girl clone. A lot of countries have baned human cloning.

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Quiz : Dolly The Sheep - Quiz

The following quiz consists of 10 questions and tells whether you have well understood the video.
The questions are not that difficult, so don’t cheat by looking ahead ! Even if you want to be the winning team !

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2. When they talk about cloning on the news, they're usually talking about reproductive cloning – making a new baby animal that is the twin of an existing animal. What is the process used to do this?

Explanation

It’s called “somatic cell nuclear transfer.” A scientist takes the nucleus (including DNA) from a somatic cell and puts it into an egg that has had its nucleus removed.

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3. How many organisms are needed to clone?

Explanation

The somatic cell donor, the egg donor, the host.

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4. A cloned animal has almost the same DNA as the animal that was cloned.

Explanation

In reproductive cloning, only the nucleus is used. The nucleus contains DNA, so the clone inherits that DNA from the animal that gave the egg.

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5. Dolly was born the 24th of February 1997. When  were these news broadcasted ?

Explanation

Dolly was 7 months old when the video was shot.. So, if she was born in February 1997, these news must have been shooted in September 1997.

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6. The adult sheep which has given mammal cells was 8 years old.

Explanation

6 years old.

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7. What is the organism which hadn't been cloned in laboratory before Dolly's birth?

Explanation

Cumulina, the first cloned mouse was born in October 1997.
(Carp was cloned in 1963 and carrot plants were cloned in 1958.

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8. What is a mammal cell?

Explanation

Any cell of a plant or an animal other than a sex cell (sex cell : e.g. spermatozoon, ovum)

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9. What is the approximate success rate of this reproductive cloning (Dolly)?

Explanation

So you could put somatic cell nuclei into eggs 3 000 times, and maybe 10 might work.

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10. Cloning is making a biological entity that appears like another.

Explanation

Cloning is making an exact copy of some biological entity.

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Scientists have already cloned a human.
When they talk about cloning on the news, they're usually talking...
How many organisms are needed to clone?
A cloned animal has almost the same DNA as the animal that was cloned.
Dolly was born the 24th of February 1997. When  were these news...
The adult sheep which has given mammal cells was 8 years old.
What is the organism which hadn't been cloned in laboratory before...
What is a mammal cell?
What is the approximate success rate of this reproductive cloning...
Cloning is making a biological entity that appears like another.
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