Dolly the Sheep and Cloning

The transcript discusses the birth of Dolly the sheep, the first mammal cloned from an adult cell, and her significance in scientific research. It covers the health of Dolly's sister clones, advancements in cloning technology over the past 20 years, and the potential future applications of cloning and induced pluripotent stem (IPS) cells. The discussion highlights the improved health of the sister clones compared to Dolly and the shift in research focus towards IPS cells for therapeutic purposes.

What was significant about Dolly the sheep?

• She was the first mammal cloned from an adult cell.

• She was the first animal to live over 20 years.

• She was the first animal to be cloned from a plant cell.

• She was the first mammal to be cloned from a juvenile cell.

What health issue did Dolly develop two years before her death?

• Heart disease

• Osteoarthritis

• Diabetes

• Lung cancer

How are Dolly's sister clones genetically different from her?

• They have different nuclear DNA.

• They have different mitochondrial DNA.

• They have different cell lines.

• They have different chromosomal structures.

What was the main cause of Dolly's early demise?

• A bacterial infection

• A virus causing lung tumors

• A genetic disorder

• Old age

How has cloning technology improved over the last 20 years?

• It has been completely abandoned.

• It has become more efficient and effective.

• It has remained the same.

• It has become less efficient.

What is considered cloning's greatest legacy?

• The ability to clone dinosaurs

• The ability to clone humans

• The creation of immortal animals

• The demonstration of pluripotency in cells

What is the focus of current research in cloning and stem cells?

• Cloning humans

• Induced pluripotent stem cells (IPS)

• Creating new species

• Cloning dinosaurs

What does the study of cloned animals suggest about cell reprogramming?

• Reprogramming is impossible.

• Cells cannot be reprogrammed.

• All cells are identical.

• Some cells can undergo complete reprogramming.

What is the future plan regarding Dolly's line of clones?

• To abandon cloning research

• To move forward with other cell lines

• To clone only plants

• To create more clones from her line

Who was interested in evaluating the original cloning protocols?

• Kevin Sinclair

• Keith Campbell

• John Danosky

• Dolly the Sheep