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Evidences of Evolution

How did Louis...

Question

How did Louis Pasteur successfully demolish the popular theory of spontaneous generation ?

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Solution

Louis Pasteur experimentally demonstrated that life can arise only from pre-existing life in the present environment. He proved that no life arose from the heat-killed micro organisms kept in a pre-sterilized flask kept closed while new life arose from the heat-killed micro organisms that were kept in flask left open in the air.

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Identify the incorrect statements regarding origin of life:

(i) The Swan-necked flask experiment was performed by Stanley Miller.
(ii) Louis Pasteur is famous for propounding the Theory of Panspermia.
(iii) Louis Pasteur disproved spontaneous generation theory forever.
(iv) The Cosmozoic theory of origin of life was proposed by Saurez.

Q. Pasteur succeeded in disproving the spontaneous generation theory because

Q. Pasteur succeeded in disproving the theory of spontaneous generation because

Q. The theory of evolution supported by the experiment conducted by Louis Pasteur is [1 mark]
(A) Spontaneous generation theory
(B) Life comes only from pre-existing life
(C) Abiogenesis of life
(D) Big bang theory

Q. Pasteur succeeded in disapproving the spontaneous generation theory, because

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