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Question : What is translation in protein synthesis ? Describeany twosteps of translations. |
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Answer» Solution :(1) Translation:Translationis the process in whichthe sequenceof codonon the m-RNAstrand is decodedand ACCORDINGLY amino acidsare SELECTED and futher joined with eachotherto form a polyeptide chain . Thispolypeptidechainthen forms a protein.Theprocess of translation involvesthe followingstepslikeactivation and formation of polypeptide chain . (2) ACTIVATION of amino acidsand formation of AA-tRNA complex: (1)ENZYME aminoacyl t-RNA synthetaase activates the amino acidmoleculesand theneachof thesemoleules get attached to spectifict-RNAmolecule. Thisattachment takes placeat 3'CCA end and forms aminoacyl t-RNA complex. (2)ATP is needed for thisreaction, Thisstep is also calledchargingof t-RNAor aminoacylation of t-RNA. |
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