The discovery of the restriction enzymes, which slice DNA at specific sequences, revolutionized genetic engineering under which scientist? MCQ with Answer and Explanation

The discovery of the restriction enzymes, which slice DNA at specific sequences, revolutionized genetic engineering under which scientist?
A. Paul Berg
B. James Watson and Francis Crick
C. Kary Mullis
D. Werner Arber, Hamilton Smith, and Daniel Nathans
Answer: Option D
Solution (By JKSSB Mock Tests)
These three scientists received the 1978 Nobel Prize for discovering restriction endonucleases and applying them to molecular genetics.

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Practice More Inventions and Discoveries Questions

Question #1
The invention of the common chemical transformation layout known as the Solvay process optimized production of what?
A. Ammonia
B. Nitric Acid
C. Sulfuric Acid
D. Sodium Carbonate

Correct Answer: Option D


Explanation:
Ernest Solvay patented the ammoniacal brine method in 1861, replacing the more expensive Leblanc soda ash synthesis.

Question #2
The invention of the common computing programming language Fortran (Formula Translation) was directed by whom at IBM?
A. Dennis Ritchie
B. Grace Hopper
C. Alan Turing
D. John Backus

Correct Answer: Option D


Explanation:
John Backus led the engineering team that developed Fortran in 1957, the first widely used high-level compiled computer language.

Question #3
Who discovered artificial radioactivity and shared a Nobel Prize with her husband in 1935?
A. Irène Joliot-Curie
B. Marie Curie
C. Maria Goeppert Mayer
D. Lise Meitner

Correct Answer: Option A


Explanation:
Irène Joliot-Curie (daughter of Marie Curie) and her husband Frédéric Joliot-Curie discovered artificial radioactivity.