Animal Cloning and Dolly the Sheep

The video discusses animal cloning, focusing on the cloning of Dolly the sheep. It explains the process of cloning, which involves taking a cell from one animal and an egg without a nucleus from another, fusing them, and implanting the fused cell into a female sheep. Dolly was the first cloned animal, and the process involved several steps, including cell starvation and electric shock fusion. The cloning of Dolly advanced stem cell research and demonstrated that an adult cell's nucleus contains all the DNA necessary to create another animal. The video concludes with a brief mention of Dolly's lifespan and encourages viewers to subscribe for more educational content.

What is the first step in the process of cloning an animal?

• Using electric shock to fuse cells

• Implanting the fused cell into a female

• Extracting a cell from the animal to be cloned

• Removing a nucleus from an egg

What was the purpose of starving the cell taken from the sheep?

• To make it grow faster

• To force it into an embryonic state

• To change its DNA

• To make it more resilient

What technique was used to fuse the two cells together in Dolly's cloning?

• Chemical fusion

• Magnetic fields

• Electric shock

• Heat application

How many cells were fused before one developed into Dolly?

• 50

• 300

• 100

• 200

What was a major scientific advancement resulting from Dolly's cloning?

• Discovery of new animal species

• Development of new cloning machines

• Advancement in stem cell research

• Improved animal breeding techniques

What did Dolly's cloning prove about the nucleus of an adult cell?

• It is only partially useful for cloning

• It needs to be modified for cloning

• It cannot be used for cloning

• It contains all the DNA needed to create a new animal

How long did Dolly live after being cloned?

• 12 years

• 3 years

• 6 years

• 9 years

What was the cause of Dolly's death?

• Old age

• Heart disease

• Kidney failure

• Lung disease