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(B) The biochemical theory of the origin of life,also known as the Oparin-Haldane hypothesis,was proposed by Alexander Oparin and $J$.$B$.$S$. Haldane

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Oparin

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(B) The biochemical theory of the origin of life,also known as the Oparin-Haldane hypothesis,was proposed by Alexander Oparin and $J$.$B$.$S$. Haldane. Alexander Oparin,a Russian biochemist,published his book 'The Origin of Life' in $1936$,where he proposed that life originated from non-living organic molecules through a series of chemical reactions in the primitive atmosphere. This theory suggests that the early Earth's atmosphere was reducing and that simple organic compounds were synthesized under the influence of energy sources like lightning and $UV$ radiation. Therefore,Oparin is recognized for providing the most logical biochemical framework for the origin of life.

Column-$I$	Column-$II$
$P$. Origin of Earth	$I$. $4500 \, mya$
$Q$. Origin of Life	$II$. $4000 \, mya$
$R$. Origin of first cellular life	$III$. $3000 \, mya$
$S$. Origin of first non-cellular life	$IV$. $2000 \, mya$

Which scientist proposed the most logical biochemical theory for the origin of life?

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Column-$I$ Column-$II$
$P$. Origin of Earth $I$. $4500 \, mya$
$Q$. Origin of Life $II$. $4000 \, mya$
$R$. Origin of first cellular life $III$. $3000 \, mya$
$S$. Origin of first non-cellular life $IV$. $2000 \, mya$

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