Page 16 - CH6 (1)
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because if we insert three or multiple of three bases followed by the
                       deletion of same number of bases, then the reading frame will remain

                       unaltered.

               Structure of tRNA; Process of Translation; Regulation of Gene
               Expression


               tRNA

                   ● tRNA is an adapter molecule. On one hand, it reads the genetic code

                       and on the other hand, it binds to specific amino acids.
                                      a
                   ● tRNA has an ​nticodon loop​hat has bases complementary to the

                                                           t
                       mRNA code and an ​mino acid acceptor end​where it binds to the

                                              a
                       corresponding amino acid.
                   ● Initiation tRNA − This tRNA is essential for initiation of translation and
                       has AUG in anticodon loop and Met in amino acid acceptor end.
                   ● There are no tRNAs for stop codons.
























               Translation

                   ● The mRNA contains the genetic information, which is translated into

                       the amino acid sequence with help of tRNA. Amino acids are
                       polymerised to form a polypeptide.

                   ● Amino acids are joined by peptide bond.
                   ● First of all, charging of tRNA (amino­acylation of tRNA) takes place. In

                       this, amino acids are activated in the presence of ATP and are linked to
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