Who discovered the biological mechanism of cloning in mammals, producing 'Dolly the Sheep' in 1996? MCQ with Answer and Explanation

Who discovered the biological mechanism of cloning in mammals, producing 'Dolly the Sheep' in 1996?
A. Ian Wilmut and Keith Campbell
B. Francis Crick
C. Robert Edwards
D. James Watson
Answer: Option A
Solution (By JKSSB Mock Tests)
Wilmut and Campbell successfully cloned an adult somatic cell using nuclear transfer methods at the Roslin Institute.

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Practice More Inventions and Discoveries Questions

Question #1
Who discovered that atomic radioactive decay emits discrete high-energy electromagnetic waves named 'Gamma Rays'?
A. Marie Curie
B. Paul Villard
C. Ernest Rutherford
D. Henri Becquerel

Correct Answer: Option B


Explanation:
French chemist Paul Villard discovered gamma radiation in 1900 while studying uranium emission shielding paths.

Question #2
Who discovered that biological chromosomes carry the unique hereditary factor tracking layouts, establishing Chromosome Theory?
A. James Watson
B. Thomas Hunt Morgan
C. Walter Sutton and Theodor Boveri
D. Gregor Mendel

Correct Answer: Option C


Explanation:
Sutton and Boveri independently identified in 1902 that chromosome pairing and separation match Mendelian inheritance laws.

Question #3
Who discovered Hydrogen gas, which he called 'inflammable air'?
A. Antoine Lavoisier
B. Henry Cavendish
C. Joseph Priestley
D. John Dalton

Correct Answer: Option B


Explanation:
Henry Cavendish isolated hydrogen gas in 1766 and recognized it as a discrete substance.