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What does the reading frame establish? Explain your answer. A. mRNA sequence B. sequence of codons

What does the reading frame establish? Explain your answer.

A. mRNA sequence

B. sequence of codons

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Answer #1

A.

All mRNA are read in the direction of 5'-->3' by the rRNA it involves 3 steps....Initiaton, Elongation,terminational..... Initiation step always present at 5' Prime....So direction of mRNA reading is fixed.

B.

Codon are read in 5' to 3 prime in order to sequense of mRNA and in same ways the form the amino acid sequence at the opposite pole of tRNA...and mRNA sequence read by tRNA and take up same triplet codon and proceed Polypeptide chain and it modified into Protein.

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