EVOLUTION
THE ORIGIN OF LIFE
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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RNA probably mutatedinto DNA
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RNAhas both information storage and catalytic properties.
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RNA can replicate more accurately thanDNA.
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RNA contains uracil in place ofthymine.
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Detailed explanation-1: -Why do some scientists believe that RNA, rather than DNA, was the first genetic material?-RNA has both information storage and catalytic properties.-RNA can replicate more accurately than DNA.-All the proto-cells on early Earth contained RNA.
Detailed explanation-2: -RNA can direct the creation of proteins and perform other essential functions of life that DNA can’t do. RNA’s versatility is one reason that scientists think this polymer came first, with DNA evolving later as a better way to store genetic information for the long haul.
Detailed explanation-3: -Why is RNA thought to have been the first genetic material? RNA is capable of self-replication; DNA is not.
Detailed explanation-4: -The first genetic material was RNA as there is evidence that suggests essential life processes evolved around and from RNA such as metabolism, translation, splicing, etc. RNA also used to act as a catalyst and a genetic material in living system in important biochemical reactions.
Detailed explanation-5: -Evidence that RNA arose before DNA in evolution can be found in the chemical differences between them.