How did the metabolic capsules of life origin | vedclass

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(C) We do not know how the first self-replicating metabolic capsules of life originated. It is believed that the first non-cellular form of life could

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We do not know how the first self-replicating metabolic capsules of life originated.

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(C) We do not know how the first self-replicating metabolic capsules of life originated. It is believed that the first non-cellular form of life could have originated $3$ billion years ago.These would have been giant molecules ($RNA$,proteins,polysaccharides,etc.). These capsules likely reproduced themselves. The first cellular form of life did not evolve until about $2000$ million years ago. These were probably single-celled.All life forms were in the water environment only. Thus,it is generally accepted that the first living cell came into existence through a slow evolutionary process from non-living molecules,as per the theory of biogenesis.

Column-$I$	Column-$II$
$(X)$ Earth	$(1)$ $20$ billion years
$(Y)$ Universe	$(2)$ $4.5$ billion years
$(Z)$ Non-cellular life	$(3)$ $3.0$ billion years

How did the metabolic capsules of life originate?

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State the theory of abiogenesis. How does Miller's experiment support this theory?

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Match the following columns:
Column-$I$ Column-$II$
$(X)$ Earth $(1)$ $20$ billion years
$(Y)$ Universe $(2)$ $4.5$ billion years
$(Z)$ Non-cellular life $(3)$ $3.0$ billion years

Photosynthetic bacteria evolved on earth about ....... million years ago.

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