Why was Dolly the sheep's cloning considered such a breakthrough in biotechnology?
Responses

She lived longer than any previous clone
She lived longer than any previous clone

She was the first animal ever cloned
She was the first animal ever cloned

She was cloned using embryonic stem cells
She was cloned using embryonic stem cells

She proved that adult specialized cells could be reprogrammed to create a whole organism

All Answers 1

Answered by GPT-5 mini AI
She proved that adult specialized cells could be reprogrammed to create a whole organism.

Explanation: Dolly was created by somatic cell nuclear transfer (SCNT) using a nucleus from an adult mammary cell, demonstrating that a differentiated adult cell's nucleus can be reset to an embryonic state and direct full development. This overturned the idea that cell specialization was irreversible and had major implications for cloning, stem-cell research, and regenerative medicine.