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.
Famous inventionsNobel Prize winnersScientific conceptsKey inventors
Inventors and Scientific Discoveries Questions
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Robert Hooke
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Robert Koch
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Robert Brown
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Robert Clive
B
Correct answer
Explanation
Robert Koch pioneered the technique of growing bacteria in pure culture on solid media in the late 19th century, which was revolutionary for microbiology. While Robert Hooke first observed microorganisms in the 17th century, Koch's work established systematic methods for isolating and growing specific bacterial species, forming the basis of germ theory.
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Selman Waksman
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Alexander Fleming
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Abelardo Aguilar
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Beecham scientists
B
Correct answer
Explanation
Alexander Fleming discovered penicillin in 1928, which is widely recognized as the first antibiotic. Selman Waksman coined the term antibiotic but discovered streptomycin later. Abelardo Aguilar discovered erythromycin, and Beecham scientists developed amoxicillin, both after penicillin.
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James Watson
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Peter Mitchell
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Maurice Wilkins
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Francis Crick
D
Correct answer
Explanation
Francis Crick formulated the Central Dogma of Life, which describes the flow of genetic information from DNA to RNA to protein. This fundamental principle explains how genetic information is processed in living organisms.
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James Watson, Francis Crick
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James Watson, Maurice Wilkins
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Peter Mitchell, Maurice Wilkins
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James Watson, Theodore Schwann
A
Correct answer
Explanation
James Watson and Francis Crick formulated the double helix structure of DNA in 1953, building on X-ray diffraction data from Rosalind Franklin and Maurice Wilkins. This discovery revolutionized our understanding of genetic information storage.
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Robert Clive
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Robert Koch
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Robert Hooke
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Robert Brown
B
Correct answer
Explanation
Robert Koch was the first to successfully grow microorganisms in pure culture using solid media, developing Koch's postulates. Robert Hooke observed microorganisms but did not grow them, Robert Brown discovered cell nuclei, and Robert Clive was a colonial administrator.
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Gregor Johann Mendel
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Thomas Hunt Morgan
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Hunt Thomas Morgan
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Johann Gregor Mendel
A
Correct answer
Explanation
Gregor Johann Mendel established that traits are inherited through genes through his pea plant experiments, founding modern genetics. Thomas Hunt Morgan later confirmed this with fruit flies, showing genes are on chromosomes.
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T.H.Morgan
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G.J. Mendel
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Eugene Simpson
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Charles Darwin
A
Correct answer
Explanation
T.H. Morgan won the Nobel Prize in 1933 for his work on genetics using the fruit fly (Drosophila melanogarium), demonstrating that genes are located on chromosomes. G.J. Mendel founded genetics earlier, Eugene Simpson is not a known geneticist, and Charles Darwin proposed natural selection.
B
Correct answer
Explanation
Thomas Alva Edison is the full name of the famous American inventor. 'Alva' is his middle name. Edison is one of the most prolific inventors in history, holding over 1,000 patents including the phonograph and the practical electric light bulb.
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Light bulb
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Telephone
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Phonogragh
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Radio
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Stephen Hawkin
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Charles Darwin
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Alexander Fleming
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Louis Pasteur
B
Correct answer
Explanation
Charles Darwin wrote 'On the Origin of Species' (full title: 'On the Origin of Species by Means of Natural Selection, or the Preservation of Favoured Races in the Struggle for Life') published in 1859. This revolutionary book presented Darwin's scientific theory that populations evolve over generations through natural selection. It forms the foundation of evolutionary biology. Stephen Hawking is a physicist, Alexander Fleming discovered penicillin, and Louis Pasteur contributed to germ theory and vaccination.
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Shockley
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Pascal
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Sholes
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Waterman
C
Correct answer
Explanation
Christopher Latham Sholes, along with partners Samuel Soule and Carlos Glidden, invented the first practical typewriter in 1867. Sholes' design, known as the Sholes and Glidden typewriter, was commercially produced by Remington and Company. The QWERTY keyboard layout, still used today, was also developed by Sholes to prevent jamming of commonly used letter combinations. Shockley worked on transistors, Pascal invented the mechanical calculator, and Waterman is associated with fountain pens.
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John Graham
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Charles Babbage
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Wilhelm Schickard
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none of these
B
Correct answer
Explanation
Charles Babbage is widely regarded as the Father of Computers for designing the Difference Engine and Analytical Engine in the 19th century, which laid the theoretical groundwork for modern computers. John Graham and Wilhelm Schickard were not primarily known as computer pioneers, and 'none of these' is incorrect since Babbage is the correct answer.
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Telescope
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Stethoscope
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Compass
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Periscope
D
Correct answer
Explanation
In 'Twenty Thousand Leagues Under the Sea,' Jules Verne described Captain Nemo using a periscope on the Nautilus submarine. When periscopes were actually invented decades later for submarine warfare, the original inventor was denied a patent, as the concept was already published in Verne's fiction.
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Pierre Curie
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Madame Curie
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Louie Curie
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Alfonso Curie
B
Correct answer
Explanation
Madame Curie (Marie Curie) discovered radium in 1898 along with her husband Pierre Curie. She was a pioneering physicist and chemist who conducted groundbreaking research on radioactivity, winning two Nobel Prizes.
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Robert Hooke
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Robert Brown
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Robert Clive
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Robert Schwann
A
Correct answer
Explanation
Robert Hooke discovered the cell in 1665 while examining cork under a microscope, documenting his findings in his book Micrographia. Robert Brown is known for Brownian motion, Robert Clive was a British colonial administrator, and Theodor Schwann (not Robert Schwann) contributed to cell theory.