Who discovered that biological inheritance displays specific mapping coordinates relative to chromosome linkage structures? MCQ with Answer and Explanation

Question

Who discovered that biological inheritance displays specific mapping coordinates relative to chromosome linkage structures?

A. James Watson

B. Gregor Mendel

C. Francis Crick

D. Thomas Hunt Morgan and Alfred Sturtevant

Answer: Option D

Solution (By JKSSB Mock Tests)

Sturtevant, a student of Morgan, constructed the world's first genetic map in 1911 by tracking crossover frequencies in fruit flies.

This question belongs to: Static General Knowledge Inventions and Discoveries

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Question #1

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The invention of the common kitchen appliance known as the electric food disposal system was developed by whom?

A. Thomas Edison

B. Willis Carrier

C. Alva Fisher

D. John W. Hammes

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Correct Answer: Option D

Explanation:
Architect John W. Hammes invented the sink garbage disposer device ('InSinkErator') in 1927 to help his wife clean up food waste.

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Question #2

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The invention of the common electrical structural device known as the coaxial cable was patented in its modern form by whom?

A. Alexander Graham Bell

B. Nikola Tesla

C. Michael Faraday

D. Lloyd Espenschied and Herman Affel

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Correct Answer: Option D

Explanation:
Espenschied and Affel engineered the concentric dual-conductor configuration at Bell Labs in 1929 for high-frequency radio networks.

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Question #3

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The first modern steam locomotive, 'Rocket', was built by which engineer?

A. Richard Trevithick

B. James Watt

C. Thomas Newcomen

D. George Stephenson

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Correct Answer: Option D

Explanation:
George Stephenson and his son Robert built the 'Rocket' in 1829, setting the standard for future steam railways.

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