Who discovered that biological chromosomes carry the unique hereditary factor tracking layouts, establishing Chromosome Theory? MCQ with Answer and Explanation

Question

Who discovered that biological chromosomes carry the unique hereditary factor tracking layouts, establishing Chromosome Theory?

A. Thomas Hunt Morgan

B. Gregor Mendel

C. James Watson

D. Walter Sutton and Theodor Boveri

Answer: Option D

Solution (By JKSSB Mock Tests)

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

This question belongs to: Static General Knowledge Inventions and Discoveries

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The discovery of the first pulsar (rotating neutron star) was achieved by which astrophysicist in 1967?

A. Subrahmanyan Chandrasekhar

B. Antony Hewish

C. Fred Hoyle

D. Jocelyn Bell Burnell

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Correct Answer: Option D

Explanation:
Jocelyn Bell Burnell discovered the first radio pulsars as a postgraduate student, although her advisor Antony Hewish received the Nobel Prize.

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Question #2

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Who discovered the vaccine for Rabies?

A. Robert Koch

B. Edward Jenner

C. Jonas Salk

D. Louis Pasteur

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Correct Answer: Option D

Explanation:
Louis Pasteur developed the first vaccine against rabies by cultivating the virus in rabbits and drying the affected nerve tissue.

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Question #3

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Who discovered the existence of the atomic nucleus through the famous Gold Foil Experiment?

A. John Dalton

B. J.J. Thomson

C. Niels Bohr

D. Ernest Rutherford

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Correct Answer: Option D

Explanation:
Ernest Rutherford discovered the dense, positively charged atomic nucleus in 1911 by firing alpha particles at thin gold sheets.

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