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Question

Action of insulin was first demonstrated by

A
Banting and Best
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B
Darwin
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C
Lamarck
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D
Watson and Crick
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Solution

The correct option is A Banting and Best
A. Banting and Best were the first to discover insulin. They purified insulin and made it available for the treatment of diabetes.
B. Darwin proposed theory of natural selection for evolution.
C. Lamarck proposed theory of inheritance acquired characters.
D. Watson and Crick discovered the structure of double helix DNA.
So, the correct answer is 'Banting and Best'.

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