Who was the first person to identify DNA structure? MCQ with Answer and Explanation

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Who was the first person to identify DNA structure?

A. Linus Pauling

B. Gregor Mendel

C. James Watson and Francis Crick

D. Rosalind Franklin

Answer: Option C

Solution (By JKSSB Mock Tests)

James Watson and Francis Crick, with key contributions from others, identified the double helix structure of DNA in 1953.

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Who was the first person to win a Nobel Prize in Physics?

A. Wilhelm Röntgen

B. Niels Bohr

C. Albert Einstein

D. Max Planck

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Correct Answer: Option A

Explanation:
Wilhelm Röntgen was awarded the first Nobel Prize in Physics in 1901 for his discovery of X-rays.

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Question #2

Who discovered the first Earth-sized exoplanet in habitable zone?

A. NASA

B. Multiple

C. Kepler team

D. Michel Mayor

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Correct Answer: Option C

Explanation:
Kepler mission discovered several.

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Question #3

Who invented the roller coaster?

A. Wright Brothers

B. LaMarcus Adna Thompson

C. Isaac Newton

D. Thomas Edison

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Correct Answer: Option B

Explanation:
Thompson built the first roller coaster.

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