Who discovered the protozoan parasite causing Malaria in human red blood cells? MCQ with Answer and Explanation

Question
Who discovered the protozoan parasite causing Malaria in human red blood cells?
A. Louis Pasteur
B. Robert Koch
C. Ronald Ross
D. Charles Alphonse Laveran
Answer: Option D
Solution (By JKSSB Mock Tests)
Charles Alphonse Laveran discovered the malaria parasite in 1880, winning the Nobel Prize in 1907. Sir Ronald Ross later discovered that mosquitoes transmit it.
This question belongs to: Static General Knowledge Inventions and Discoveries
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Question #1
Who discovered that the velocity of galaxies moving away from Earth is proportional to their distance, establishing Hubble's Law?
A. Albert Einstein
B. Johannes Kepler
C. Edwin Hubble and Georges Lemaître
D. Isaac Newton
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Correct Answer: Option C

Explanation:
Lemaître mathematically derived and Hubble observationally proved the cosmic expansion velocity relation.
This question belongs to: Static General Knowledge Inventions and Discoveries
Question #2
Who discovered the phenomenon of nuclear magnetic resonance (NMR), which forms the basis of modern MRI scanners?
A. Isidor Isaac Rabi
B. Peter Mansfield
C. Paul Lauterbur
D. Felix Bloch
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Correct Answer: Option A

Explanation:
Isidor Isaac Rabi discovered nuclear magnetic resonance in 1938, for which he was awarded the Nobel Prize in Physics in 1944.
This question belongs to: Static General Knowledge Inventions and Discoveries
Question #3
The invention of the barcode system for scanning retail merchandise was patented by whom?
A. Masahiro Hara
B. Douglas Engelbart
C. Alan Turing
D. Norman Joseph Woodland and Bernard Silver
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Correct Answer: Option D

Explanation:
Woodland and Silver patented the bullseye and linear barcode design in 1952, inspired by Morse code tracking patterns.
This question belongs to: Static General Knowledge Inventions and Discoveries
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