Webster Dictionary(5.00 / 1 vote)Rate this definition: Usual(noun) such as is in common use; such as occurs in ordinary practice, or in the ordinary course of events; customary; ordinary; habitual; common.
Friday, 14 February, 2003, 20:28 GMT. Dolly the sheep clone dies young. Dolly the Sheep was born in 1996. Dolly the sheep, who became famous as the first mammal to be cloned from an adult cell, has died. The news was confirmed on Friday by the Roslin Institute, the Scottish research centre which created her.
Therefore, Dolly is a viable, healthy clone. Since Dolly, several university laboratories and companies have used various modifications of the nuclear transfer technique to produce cloned mammals, including cows, pigs, monkeys, mice and Noah.