How Dolly the Sheep was cloned

Рет қаралды 93,976

3 жыл бұрын

Dolly was the first cloned sheep. This is an explanation of how it was done. Read more here: www.understandinganimalresear... and www.animalresearch.info/en/me...
This presentation was originally made in a flash file format in around 2010. This film was restored and uploaded in 2021.

Пікірлер: 50

@stevenhutt2904 Жыл бұрын

Ask the doctor if he ever cloned himself.

@animalevidence Жыл бұрын

You could ask them yourself!🙂

@PrivateerJimmy 11 ай бұрын

@@Izmology.lmao! you can just pick such nicks?

@YOUTUBE-ADMlN 7 ай бұрын

This is old news. Why would a doctor clone himself? When he can clone a super doctor with another old tech crispr. I'm sure X-Men tech exists as well but we normies won't know about it but for sure be paying for it.

@SmilingDahliaFlower-wz6ld 5 ай бұрын

😂😂😂

@Cherry-pu4mx 2 ай бұрын

He certainly tried

@Izmology. 11 ай бұрын

They've obviously cloned humans

@FallacyUnknown 4 ай бұрын

Yup

@cavesinger5441 2 жыл бұрын

Thank you so much for this informative video! I used it and your references as the basis for my research for my assignment. Unlike the module that the school has provided, this one is way too easy to understand. Once again, Thank you Very Much!

@animalevidence 2 жыл бұрын

Thank you, glad to be of use.

@HumanBeanbag 4 ай бұрын

Rest in peace, Dolly. You are missed 😢

@krystleirvin6733 Жыл бұрын

Wow learn something but I already forgot so I will watch it again.

@EmoBoiLink 2 ай бұрын

Anyone know how they solved the rapid aging problem? And if it had anything to do with the pituitary gland.

@niraxlevi9930 Жыл бұрын

By the time they cloned dolly they didn't know about the reprogrammation of somatic cells into pluripotent cells so how did they succeed to do it ? I think it was discovered just recently in 2012 by gurdon and yamanaka so was it accidental ?

@animalevidence Жыл бұрын

Good question. I'm afraid I don't know the answer. I vaguely remember they made hundreds of attempts before being successful, so a degree of luck, but as they had set out to clone, I don't think it was accidental.

@iliaanjin7333 10 ай бұрын

How did the enucleated ovum undergo the multiplication without having a nucleus to express the necessary genes to do so?

@mairead3361 8 ай бұрын

The cell culture from sheep 1 (white faced sheep) had been fused with sheep 2 (black faced sheep) and with it its nucleus. The offspring sheep had a white face proving that it was a clone of sheep 1, meaning that it had the exact genetic information The genes (sheep 1) were expressed from the mothers embryonic signalling (sheep 2) Sheep 2 was just used for its embryo (cell signalling and cell differentiation) Sheep 3 was used for gestation Sheep 1 was the only sheep that contributed genetically (hence Dolly is a clone)

@user-tx7in5ug8i 10 ай бұрын

finally a video that is simple and makes it make sesne

@footballbranthan2396 Жыл бұрын

I have a question why use the egg from sheep 2 to insert cells from sheep 1 why not insert shells into sheep 1's egg itself?

@3th4n_ol26 Жыл бұрын

In the video, they say they did this so they could tell if the offspring was a clone, as the offspring should have a different colour face to the surrogate. There were probably other reasons, too, though.

@silkybiswal4874 11 ай бұрын

There is a process called transgenic where we fuse two different cell of different organism .so basically its a experiment where a donor and recepient are used to see the results of forming cell

@amindeshmukh2958 Жыл бұрын

Thank you it helped me a lot in my class thank you again ☺️😃

@animalevidence Жыл бұрын

You are very welcome

@letitbe3625 Жыл бұрын

Chutiya schoool jata hai drop out kar school se

@cigdemcetin303 Жыл бұрын

I dont get it. where does the centrosome come from?egg cells dont have a centrosome.can someone explain pls

@alexabiber1023 3 ай бұрын

@igotjiminsjam4142 2 жыл бұрын

Thank you mam

@akshantrapaliwal7096 4 ай бұрын

From this I will made my whole clone army them will rule the world

@blackballskaiser6423 2 ай бұрын

Clone wars

@younghannibal7434 3 жыл бұрын

Great video

@animalevidence 3 жыл бұрын

Glad you enjoyed it

@yorgunsavasci4529 2 жыл бұрын

insane

@kawaragi7529 2 жыл бұрын

can you explain? is dolly the sheep 1?

@animalevidence 2 жыл бұрын

Hello, no dolly is sheep 2, Dolly is the cloned animal

@jasonstout8582 3 ай бұрын

Isn't this more closely related to IVF than "cloning"?

@user-nz3ll5fi1t 3 ай бұрын

While they indeed implanted the egg into the surrogate sheep via IVF, the lamb that was born (dolly) was completely genetically identical to the older dolly whose DNA they extracted and implanted into the donor egg, so for lack of a better word, they did “clone” her

@sdfjsd Жыл бұрын

Wait what about mitochondrial DNA? How was the mitochondrial DNA cloned?

@animalevidence Жыл бұрын

I think the mitochondrial DNA came from the 'host' cell, the one receiving the donor DNA

@sdfjsd Жыл бұрын

@@animalevidence Well, then it's not an exact clone then. Mitochondrial DNA has some genes that can cause phenotypes, na?

@animalevidence Жыл бұрын

@@sdfjsd Yes

@srishtisaini7174 Жыл бұрын

Means there is two ✌2⃣ parent involve in it not 3

@srishtisaini7174 Жыл бұрын

Is it right

@kafkaesque999 Жыл бұрын

There are 3 parents involved in the production of Dolly; sheep-1: Donor of the nucleus sheep-2: Donor of the enucleated egg cell sheep-3: The surrogate mother who nourished and developed the zygote, eventually giving birth to Dolly.