Answer:
Only 2 and 4 are correct
Explanation:
Translation is a process of protein synthesis and it is the final step of gene expression. mRNA synthesized during the transcription is used as an information carrier for protein synthesis. It contains codons-triplet of nucleotides that correspond to one amino acid. mRNA is read in 5'-3' direction by translational machinery. tRNA which is part of the by translational machinery (together with ribosome and proteins) has in ts structure anticodon-RNA triplet which is complementary to the mRNA. tRNA also contain a site for the attachment of amino acid. Amino acids are linked via peptide bonds by an enzyme aminoacyl tRNA synthetases. Polypeptide is synthesized from N to C terminus.