What kind of cells was used to make Dolly?

Answer 1

Dolly the cloned sheep was the first example of an animal cloned with DNA from a somatic cell (a cell which is not a gamete/sex cell). Specifically, Dolly was cloned from a cell of a sheep's mammary gland.

However, the complete somatic cell itself was not a part of the embryo that became Dolly. Instead, scientists removed the DNA from an unfertilized sheep oocyte (a precursor to an egg) and inserted the DNA taken from the mammary gland cell in its place. This meant that only the nucleus from the mammary gland cell was actually used to create Dolly.

Answer 2

Both egg cells and mammary cells were used to create Dolly the Sheep.

Answer 3

Both egg cells and mammory cells were used to create Dolly. They are the same cells but dulicated into another sheep.

Answer 4

The answer is : c