La oveja Dolly

The video discusses the concept of artificial cloning, highlighting the initial challenges faced with malformed and prematurely dying animals. It then focuses on the breakthrough achieved in 1997 by scientists at the Rosslin Institute with the cloning of Dolly the sheep, the first successful clone from an adult mammal. The process involved nuclear transfer, where the nucleus of an adult sheep cell was inserted into an egg cell. Despite Dolly's premature death, her creation paved the way for advancements in genetic engineering, including the potential for human gene transfer to animals for medical purposes. The video also touches on the ethical debates surrounding cloning.

What was a major challenge faced by early attempts at animal cloning?

• Cloned animals often had malformations or died prematurely.

• Animals were too large to clone.

• Cloning was too expensive to conduct.

• Cloned animals were unable to reproduce.

What was the code name given to the first successfully cloned sheep?

• Dolly

• 6 L L 3

• Roslin

• Sheep 1

How many attempts were made before Dolly the sheep was successfully cloned?

• 100

• 50

• 277

• 500

What was a significant concern raised by Dolly's premature aging?

• Cloning was too costly.

• Cloned animals could not reproduce.

• Cloning was not scientifically possible.

• Cloning could lead to shorter lifespans.

What future application of cloning is mentioned in the context of human health?

• Cloning plants for agricultural benefits.

• Creating cloned pets for companionship.

• Using cloned animals to produce human organs for transplantation.

• Cloning humans for population control.