Knowledge Hour:Dolly The sheep,world's first cloned mammal.

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4 years ago

1st of all I am going to say, this is gonna be a pretty big article. Hope you guys will read it with patience cause it's interesting😗😗😗.

Let me tell you what is cloning. In short, Cloning is the process of producing similar product that is exactly identical to the product it is produced from. And cloning in biotechnology means production of an organism which is genetically identical to the individual it is producrd from.

Now here comes Dolly. In February 1996, Ian Wilmnt and his colleagues became successful in producing world's 1st cloned mammal, Dolly the Finn Dorsett sheep at the Rosalin Institute in Edinburgh,Scotland.

So how she was created. Let's have a quick look at the process.

Two types of sheeps were used, Finn Dorsett sheep amd Scottish Black Face sheep. The nuclear form of the mammary cell from Fin Dorsett was combined with the enucleated mammary cell of Scottish Blace Face. The combination was stimulated with electricity to fuse the two cells and stimulate cell division. The embryo was transplanted in the Scottis Black Face ship. When the sheep no 6 LL3, Dolly was born on July 5th, she was a Fin Dorsett sheep.😍😍

Looks very easy, isn't it?.😘😘😘Some may have started thinking I'll creat one tomorrow in my Lab. But it's not that easy dude, Ian has performed the same procedure over over 400 times and only this one was successful😑😑.

I am not going to make it long. Dolly was perfectly healthy. But soon controversy started that people should not do that God is doing. Creating clones are illegal etc etc. Many protests took place. Some said if it is available, one day schools boys will be able to clone also and etc etc.

But interesting fact is Dolly died at the age of 6 though the average lifespan of a sheep is 12. More to add chill, Dolly was cloned from a 6 year old sheep. So it is possible that when dolly was born, she had already the body parts similar to a 6 year old sheep and she lived another 6 to make it to 12. But some says that's not the case and Dolly died normally. I have also the same question but my teachers gave contradictory answers so I am not clear either and hadn't done any good research after the fact. But I think if the cell was 6 years old, all the important organelles were also 6 years old and they replicated and after years their efficiency decreased too. So not clear on that fact.

Common question answer

Human cloning is banned as it may be the cause of creating bad persons and biological weapons.

Hope you liked this article.😉😉

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This happens in most genetically modified organisms. Maybe they did became successful in one specific trait but it could also be possible that they didn't achieve that on the other. In this case, it could be that they did not achieve a longer life span- which could be affected by both genetics and environment.

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4 years ago

The thing is genetically modified and clone are different things. I said earlier that exactly identical and the nucleus was from the fin dorsett so all the traits should be there. But in case of GM product which are mostly plants, meiosis occurs in both the and both gives 50%((100/2+100/2=hundred) so the other 50 contains many traits that doesn't come to the offspring and in order to achieve desired trait, backcross is done. It's a clone, not chimera. so missing a trait won't call it a clone as clone means genetically identical guess.

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4 years ago

Yes right. I wasn't able to know more details about Dolly, but if it was purely cloning then maybe the initial reason that it came from a 6 year old sheep could've affected how it was cloned. Thank you for pointing this one out.

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4 years ago

I am not sure either. Just an hypothesis

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4 years ago

That's alright. Btw, your article is good. Very informative. It was my first time to see this kind of article here. ❤️

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4 years ago

I try to mix up different types. Art,Meme,Photo,science,Social prob etc etc https://read.cash/@Jihan/knowledge-hourworlds-most-resilient-creature-tardigrade-205993c5 feel free to have a look at this one

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4 years ago

Oh sure. Will do. ❤️

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4 years ago

Informative article! 😸

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4 years ago

Nobody gave any patta😑😑

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4 years ago

Please correct these two, both in the paragraph before the last image.

The word "controversal" doesn't exist. The closest is "controversial" but that doesn't make real sense here. Perhaps you mean "contradictory"? I don't know. But please change it to a real word.

Then you have a typo. You write "aftwr". Please change to "after".

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4 years ago

Done and thanks.

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4 years ago

Looks fine. Thanks.

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4 years ago

Well written bro!Very informative.We briefly read about this in college 😅

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4 years ago

Valo lekhchi bt viw nai🤣🤣🤣...manush avoid korce

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4 years ago