LIFE SCIENCE

Detailed explanation-1: -The lamb cloned from the udder cell was the first example of an animal cloned from an adult cell and although only referred to as “6LL3” in the Nature paper, she was later named Dolly, after the singer Dolly Parton.

Detailed explanation-2: -Dolly started her life as a single cell in a test tube taken from the mammary gland of a Finn Dorset sheep and an egg cell from a Scottish Blackface Sheep. Once normal development was confirmed in a lab at six days, the embryo was transferred into a surrogate mother.

Detailed explanation-3: -BBC Future looks back at some of the landmark achievements and celebrated births over the decades. Everyone knows Dolly, but less known is that the first cloned animal success was a tadpole in the 1950s.

Detailed explanation-4: -Dolly, female Finn Dorset sheep that lived from 1996 to 2003, the first clone of an adult mammal, produced by British developmental biologist Ian Wilmut and colleagues of the Roslin Institute, near Edinburgh, Scotland.