Question
m-RNA, t-RNA and r-RNA.
| m-RNA | t-RNA | r-RNA. |
| 1. m-RNA is a simple molecule which shows linear structure without any folds. | 1. t-RNA is a single stranded molecule. There is regular pattern of folding shown by this molecule. | 1. r-RNA is a single stranded RNA that is variously folded upon itself. In the folded regions it shows complementary base pairing. |
| 2. It performs the function of transcription during protein synthesis. | 2. It performs the function of transferring the amino acids during translation. | 2. This RNA remains associated with the ribosomes permanently. It gives the binding site for m-RNA during the process of protein synthesis. It also orients the m-RNA molecule so as to read the message on codons properly. |
| 3. Of the total cellular RNA, m-RNA forms 3-5%. | 3. Of the total cellular RNA, t-RNA forms about 10-20%. | 3. Of the total cellular RNA, r-RNA forms 80% |
| 4. It has molecular weight of about 5,00,000. | 4. t-RNA is the smallest RNA having only 73-93 nucleotides and has molecular weight of about 23,000 to 30,000 daltons. | 4. Molecular weight is about 40,000 to 100,000 daltons |
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Species A
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Species B
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Name of interaction
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(+)
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(+)
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(A)
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(-)
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(-)
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(b)
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(+)
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(-)
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(c)
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(+)
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(0)
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(d)
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