GENETICS AND EVOLUTION
MOLECULAR BASIS OF INHERITANCE
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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DNA
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RNA
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Protein
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Nuclein
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Detailed explanation-1: -RNA: Ribosomal nucleic acid is the first genetic material to be discovered.
Detailed explanation-2: -RNA is the first genetic material in cells because: RNA is capable of both storing genetic information and catalyzing chemical reactions. Essential life processes like metabolism, translation, splicing, etc. evolved around RNA.
Detailed explanation-3: -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-4: -RNA in humans does not act as a genetic material but play various other roles such as an adapter, enzyme, helps in protein synthesis, etc. RNA functions as a messenger for information to be transferred.
Detailed explanation-5: -Reason: TMV has RNA as genetic material. Q. Which of the following is an exception with either RNA or DNA in the cell as genetic material ?