Cloning is the production of multiple identical offspring. From which type of cell was Dolly cloned?

Cloning is the production of multiple identical offspring. From which type of cell was Dolly cloned?

کلوننگ متعدد ایک جیسی اولاد کی پیداوار ہے۔ کس قسم کے سیل سے ڈولی کلون کیا گیا تھا؟
Explanation

Dolly the sheep was cloned from an udder cell of an adult sheep.

This was a breakthrough in reproductive cloning, as it was the first successful cloning of a mammal from an adult somatic cell.