Question
Write short note: Dolly.
✓
Answer
- Dolly was the first mammalian cloned sheep.
- Dolly was born on 5th July 1996 in Scotland by the process of cloning.
- The Finn Dorset sheep was chosen and her diploid nucleus from the udder cell was introduced into the ovum whose haploid nucleus was removed. This enucleated ovum was of Scottish sheep.
- The egg was then introduced into uterus of another Scottish sheep and it grew into Dolly.
- Dolly resembled exactly like Finn Dorset sheep whose diploid nucleus was used. None of the characters of Scottish sheep were seen in Dolly.
- In this way, Dolly had three mothers but no father.
- Dolly gave birth to many young ones. She died on 14th February 2003 due to cancer of the lungs.
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