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Q.

The phrase RNA world hypothesis was coined by?

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a

Walter gilbert

b

Mendel

c

Robert Hook

d

All of the above 

answer is A.

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Detailed Solution

Concept- Walter Gilbert proposed the RNA universe theory.
RNA world hypothesis states that RNA is the first genetic material. Every life that exists on earth has a precursor that is RNA.RNA stands for Ribonucleic acid.RNA world hypothesis was proposed by Walter gilbert.Mendel is credited with founding genetics. Cells were found by Robert Hook
Hence, option 1 is correct.
 
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