Advanced Cloning Techniques: Embryo Transplants and Adult Cell Cloning

The video discusses two advanced cloning techniques: embryo transplants and adult cell cloning. Embryo transplants involve splitting a developing embryo into multiple embryos, which are then implanted into host mothers to produce genetically identical offspring. This method is used to produce many offspring from valuable animals. Adult cell cloning involves transferring the nucleus of an adult cell into an unfertilized egg, stimulating it to develop into an embryo, and implanting it into a host mother. This technique was used to clone Dolly the sheep and is still under research.

What is the primary purpose of using embryo transplants in cloning?

• To produce a large number of identical offspring

• To enhance the genetic traits of a single animal

• To create genetically diverse offspring

• To reduce the gestation period of animals

In adult cell cloning, what is the role of the electric shock applied to the egg cell?

• To stimulate the egg cell to divide and form an embryo

• To ensure the egg cell remains unfertilized

• To remove the nucleus from the egg cell

• To fuse the egg cell with the adult cell nucleus

What is the genetic relationship between the cloned lamb and the original sheep in adult cell cloning?

• They share half of their genes

• They are genetically identical

• They are genetically unrelated

• They have similar but not identical genes

Which animal was the first to be successfully cloned using adult cell cloning?

• A cow

• A horse

• A dog

• A sheep

What is a significant limitation of adult cell cloning as mentioned in the video?

• It is only applicable to sheep

• It requires multiple host mothers

• It is not yet widely used

• It produces genetically diverse offspring