Which contribution to the body of scientific knowledge is most recent? the development of the lever the confirmation of the double-helix structure of DNA the discovery of electricity the theory of evolution
Answers
Among all the options given to us let's take a look at each of them separately.
A) Lever was invented a long time ago. It is considered to be around since BC timeline.
B) DNA was discovered very recently, sometime around the 1950s
C) Electricity has been discovered at least 300 years ago, maybe around the 17th century.
D) The theory of evolution was discovered in the 19th century.
Hence B) DNA is the most recent.
The correct answer for your question is option (B)-The confirmation of the double- helix structure of DNA.
The double helix structure of the DNA was discovered by James Watson and Francis Crick back in 1953. The discovery of the double helix structure of DNA was looked upon as great discoveries of all time which had completely uplifted the human understanding of DNA and its structure.
The discovery is considered as the cornerstone of the emergence of new science study branch called modern molecular biology.