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

Kuhne is associated with which of the following?

  1. He discovered parathyroid.

  2. He coined the term enzyme.

  3. He coined the term gene.

  4. He discovered enzyme.
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

The term enzyme was coined by W. Kuhne in 1678. J.B. Summer (1926) purified and cystallised unrease enzyme and suggested that enzymes are proteins J.H. Northrop and M. Kunitz (1930) prepared pure cystalline pepsin and trypsin and showed that these enzymes were also proteins. 

Multiple choice

The molecular structure of insulin was first described by

  1. Korenberg

  2. Swaminathan

  3. Richardson

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

F. Sanger was the first person to work out the complete amino acid sequences of insulin and got the Nobel Prize in 1958. Insulin is a protein of 51 amino acids. It is made up of two polypeptide chains held together by disulphide bridges. 

Multiple choice

Who proposed binomial nomenclature?

  1. Carolus Linneaus

  2. Morgan

  3. A.P.D. Candolle

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

Binomial nomenclature, introduced by Carolus Linnaeus is the method of naming an organism with the genus name first and species name later.

Multiple choice

DNA fingerprinting was discovered by

  1. Sir Alec Jefferys

  2. Carl Mullis

  3. C. Milstein

  4. Dr. Paul Berg
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Sir Alec Jefferys (1885-86) first developed DNA fingerprinting technology. 

Multiple choice

Huxley is the founder of :

  1. classical systematics

  2. phylogenetic classification

  3. artificial classification

  4. neo systematics
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Huxley is the founder of neo systematics.It includes description of all the characters (internal) including morphological characters (external) of plants or living organism.

Multiple choice

Cholera bacillus was discovered by

  1. Louis Pasteur

  2. Joseph Lister

  3. Robert koch

  4. Ronals Ross
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Robert Koch is credited with the discovery of the bacterium Vibrio cholerae, which causes cholera, in 1883.

Multiple choice

Who invented the jet engine?

  1. James Watt

  2. Frank Whittle

  3. Charles Parsons

  4. Orville and Wilbur Wright
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Frank Whittle, a British Royal Air Force officer, is credited with inventing the turbojet engine in the 1930s.

Multiple choice

BASIC was developed by ______

  1. Thomaz Kurtz and John Kemeny

  2. Thomaz Jones and John Richard

  3. Alex Frank and James Rod

  4. Donald Kruth and Elvin John

Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

BASIC (Beginner's All-purpose Symbolic Instruction Code) was developed by John G. Kemeny and Thomas E. Kurtz at Dartmouth College in 1964.

Multiple choice

Who invented Spiderman?

  1. Stanlee

  2. Stalin

  3. Arundhati Roy

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

Spiderman was created by writer Stan Lee and artist Steve Ditko at Marvel Comics in 1962. Option A spells 'Stanlee' which appears to be a typo for Stan Lee. Stalin was a Soviet dictator, Arundhati Roy is an Indian author, and Bill Gates is a technology entrepreneur.

Multiple choice

Unit membrane hypothesis was given by

  1. David

  2. Robertson

  3. David Robertson

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

David Robertson suggested that all the cellular membranes share a similar underlying structure are the unit membranes.