General Awareness · Science General

Inventors and Scientific Discoveries

4,616 Questions

This hub provides questions related to great inventors and their scientific discoveries. It covers the inventors of the telephone, radio, and microchips, alongside Nobel Prize winners. These facts are crucial for the general awareness section of major competitive exams.

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Inventors and Scientific Discoveries Questions

Multiple choice

Quantasomes was reported by

  1. Park and Biggins

  2. Park and Pon

  3. Ris and Plaut

  4. Wilson
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Quantasomes was reported by Park and Biggins.

Multiple choice

Mitochondrial DNA was reported by

  1. Nass and Nass

  2. Ris and Plaut

  3. Kisleve et al

  4. None of the above
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Mitochondrial DNA  was reported by Nass and Nass.

Multiple choice

Nucleosome model was proposed by

  1. Audit et al

  2. Kornberg and Thomus

  3. Altmann

  4. Miescher
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

  Kornberg and Thomus proposed nucleosome model.      

Multiple choice

Microtubule was discovered by

  1. Palviz

  2. Roberteis and Franchie

  3. Van Bendon

  4. Boveri
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

 Microtubule was discovered by Roberteis and Franchie.

Multiple choice

Uniterm indexing was devised by

  1. S.R.Ranganathan

  2. Mortimer Taube

  3. E.J.coates

  4. M.A. Gopinath
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Uniterm indexing, a system of coordinate indexing, was developed by Mortimer Taube in the early 1950s.

Multiple choice

Who coined the term ecology?

  1. E.Odum

  2. Erasmus Darwin

  3. C. Elton

  4. E.Haevkel
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Although best known for the famous statement, ontogeny recapitulates phylogeny, he also coined many words, commonly used by biologists today, such as, phylum, phylogeny and ecology.

Multiple choice

The concept of ecological pyramids was developed by

  1. E.Odum

  2. C. Elton

  3. E.Haeckel

  4. Erasmus Darwin
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Ecological pyramids are also called 'Eltonian pyramids' after C. Elton. Charles Elton (1927) developed the concept of ecological pyramids who noted that , the animals at the base of a food chain, are relatively abundant while those at the end, are relatively few in number.

Multiple choice

Who designed Suez Canal?

  1. Nasser

  2. Le Corbusier

  3. Ferdinand De Lesseps

  4. None of these
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

The Suez Canal was constructed under the supervision of Ferdinand de Lesseps, a French diplomat and developer.

Multiple choice

Lift was invented by

  1. Domagk

  2. Otis

  3. Forcet

  4. None of these
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Elisha Otis invented the safety elevator (lift) in 1852, which prevented the car from falling if the hoisting rope broke.

Multiple choice

Neutrons were discovered by

  1. Chadwick

  2. Edison

  3. J. J. Thomson

  4. Newton
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

The British experimental physicist James Chadwick discovered the neutron in 1932.