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

Multiple choice
  1. Politics

  2. Declaration of Independence

  3. Constitution

  4. Businesses

  5. -

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

In the later part of his life , Franklin was drawn towards politics.

Multiple choice
  1. Directions for operating a soda machine.

  2. People's phone numbers.

  3. A penny saved is a penny earned.

  4. The score of a football game.

  5. -

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

Poor Poor Richard's Almanac which forecasted the future and included astute sayings.

Multiple choice
  1. Electricity

  2. Bifocals

  3. Kites

  4. Headphones

  5. -

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

As an inventor he is credited for the invention of Franklin stove, bifocals and lightening rod.

Multiple choice
  1. Ohio

  2. Michigan

  3. Britain

  4. America

  5. Calcutta

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

In his childhood his family shifted to Michigan.

Multiple choice
  1. A language for deaf people

  2. A system of clicks

  3. A system of clicks that stand for words

  4. A system of clicks that stand for letters

  5. An electronically conveyed message

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

His profile included sending and receiving messages via an electronically-conveyed alphabet called morse code,using different clicks for each letter.

Multiple choice
  1. Thomas Edison relocated

  2. Thomas Edison invented a doll

  3. Thomas Edison moved to Ohio

  4. Thomas Edison invented telegraph.

  5. Tomas Edison set up his factory.

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

 Thereafter, he began working on telegraph. He invented a new type of telegraph which could send four messages at once.

Multiple choice
  1. A microphone

  2. A walkie talkie

  3. A record player

  4. A video player

  5. A television

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

In 1877 Edison invented a Phonograph which was an instrument that recorded and played back different sounds.

Multiple choice
  1. Inventing an improved stock ticker

  2. Inventing the telegraph

  3. Inventing the talking doll

  4. None of the above

  5. All of the above

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

He invented a new type of telegraph which could send four messages at once.

Multiple choice
  1. Kary Mullis - polymerised chain reaction

  2. Paul Berg - father of genetic engineering

  3. Stanley Cohen and Herbert Boyer - isolate antibiotic resistant gene

  4. Arbar, Smith and Nathan - discoveries concerning new mechanisms for the origin and dissemination of infectious diseases

  5. Willium Hays and Joshua Lederberg - plasmid

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

Werner Arber, Daniel Nathans and Hamilton O. Smith received the Nobel Prize in 1978 for the discovery of restriction enzymes and their application to problems of molecular genetics. Baruch S. Blumberg and D. Carleton Gajdusek received the Nobel Prize in 1976 for their discoveries concerning new mechanisms for the origin and dissemination of infectious diseases.

Multiple choice
  1. Alexander Fleming

  2. Lindemann

  3. Edward Jenner

  4. Erwin Chargaff

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

Lindemann in 1942 put forth ten percent law for the transfer of energy from one trophic level to the next. According to the law, during the transfer of organic food from one trophic level to the next, only about ten percent of the organic matter is stored as flesh. The remaining is lost during transfer or broken down in respiration.

Multiple choice
  1. Charles Elton

  2. Robert Hooke

  3. Jean-Baptiste Lamarck

  4. Robert Brown

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

Elton is especially remembered for founding and for nearly twenty years editing the Journal of Animal Ecology. He is also known for his studies on animal community patterns (including the community-oriented concepts of the Eltonian niche and the pyramid of numbers) and for a number of contributions to economic biology and conservation studies.

Multiple choice
  1. Francoise Barre-Sinoussi and Luc Montagnier

  2. Joseph E. Murray and E. Donnall Thomas

  3. Edmond H. Fisher and Edwin G. Krebs

  4. Peter Agre and Roderick MacKirron

  5. Andrew Fire and Craig Mello

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

Barre-Sinoussi and Montagnier discovered human immunodeficiency virus (HIV). Joseph E. Murray and E. Donnall Thomas performed the first successful organ transplants by using immunosuppressive agents. Agre and MacKirron discovered water and ion channels in plasma membranes. Fire and Mello discovered RNA interference (RNAi), or gene silencing, by double-stranded RNA.

Multiple choice
  1. Only 1

  2. Only 2

  3. 1, 2 and 3

  4. 2, 3 and 4

  5. All

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

Trio of Venkatraman Ramakrishnan (India), Thomas A. Steitz (United States), and Ada E. Yonath (Israel) was awarded Nobel Prize in 2010 India for detailed study of the structure and function of ribosomes.

Multiple choice
  1. John F. Enders, Thomas H. Weller, and Frederick C. Robbins

  2. C-sar Milstein, Georges J. F. K-hler, and Niels Kai Jerne

  3. Aaron Ciechanover, Avram Hershko, and Irwin Rose

  4. Joshua Lederberg, George Beadle, and Edward Tatum

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

Lederberg, Beadle, and Tatum described genetic control of biochemical reactions and awarded Nobel Prize in 1958 for this work.

Multiple choice
  1. P-1; Q-2; R-3; S-4

  2. P-1; Q-3; R-2; S-4

  3. P-2; Q-1; R-4; S-3

  4. P-2; Q-3; R-4; S-1

  5. P-4; Q-4; R-1; S-2

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

Correct answer. Ronald Ross discovere of how malaria is transmitted and was awarded Nobel Prize in 1902 for his work. The trio of Joshua Lederberg, George Beadle, and Edward Tatum was awarded Nobel Prize in 1958 for describing genetic control of biochemical reactions. Susumu Tonegawa was awarded Nobel Prize in  1987 for describing the genetics of antibody production. Barry Marshall and J. Robin Warren were awarded Noble in 2005  for discovery that Helicobacter pylori causes peptic ulcers.