What was the designation of the first successful mammal cloned from an adult somatic cell____________?
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Answer: D. Sheep
Explanation
Dolly the sheep was the world's first successful mammal cloned from an adult somatic cell. Scientists at the Roslin Institute in Scotland utilized nuclear transfer technology to rewrite cellular programming successfully. Her birth proved that specialized adult cells could be coaxed into creating a genetically identical living animal. Cloning involves creating a genetic replica of an organism using biological material from an existing donor source. Somatic cells contain the complete DNA blueprint of an organism even though specific genes are turned off during differentiation. The scientific breakthrough stunned the global research community and sparked intense ethical debates regarding genetic engineering.
Option A names a goat which was successfully cloned later following the pioneering scientific methodologies established with sheep. Option B points to a cow which represents livestock species cloned subsequently during later agricultural research trials. Option C identifies a rat which is a common laboratory rodent but was not the pioneering mammal species for this technique.
- Subject
- General Knowledge
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- General Knowledge
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- Difficulty
- medium
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