Why is RNA thought to have been the first genetic material? All of these It can

Question

Why is RNA thought to have been the first genetic material? All of these It can act as a catalyst/enzyme It has been found in fossils from the early earth It can help form primitive membranes Which of the following organisms has existed on earth for the longest time? A Protist Stromatolite-producing prokaryotes Cyanobacteria An oak tree What is the relationship between a hypothesis and a theory in science? Hypotheses are more general, where theories are specific to particular experimental conditions Hypotheses are similar to theories, except they have been supported by extensive testing by many different scientists Theories are similar to hypotheses, except they have been supported by extensive testing by many different scientists They are the same thing

Explanation / Answer

RNA is thought to have been the first genetic material.

Answer : All of these

Explanation : It act as a catalyst/enzyme : RNA is self-replicating and self edit their own genetic code.

It has been found in the fossils from early earth - plant pathogen viriods consists of circular, single-stranded RNA.

It can help form primitive membranes - protocells consists of single-stranded RNA.

21. Stromatolite - They existed on earth for 3.5 billion years.

Among stromatolite, include phototrophic microbes cyanobacteria, which is 2.8 billion years old.

22. Theories are similar to hypothesis, except they have been supported by extensive testing by many different scientists,

Hypothesis is the explanation of a specific observation whereas, theories are concluded from a general principle by means of carrying extensive experiments.

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