Explain the process of formation of complex proteins?

Explanation

(i) Information about protein synthesis is stored in the DNA. Synthesis of appropriate proteins as per requirement is necessary for the body.
(ii) These proteins are synthesized by DNA through the RNA. This is called as The Central Dogma of life.
(iii) mRNA is produced as per the sequence of nucleotides on DNA. Only one of the two strands of DNA are used in this process.
(iv) The sequence of nucleotides in mRNA being produced is always complementary to the DNA strand used for synthesis. This process of RNA synthesis is called transcription.
(v) The mRNA formed in the nucleus comes in cytoplasm. It brings in the coded message from DNA.
(vi) The message containsi the codes for amino acids. The code for each amino acid consist of three nucleotides. It is called as triplet codons.
(vii) mRNA is made up of thousands of triplet codons.
(viii) As per the message on mRNA, amino acids are supplied by the tRNA.
(ix) For this purpose, tRNA has 'anticodon' having complementary sequence to the codon on mRNA. This is called as 'translation'.
(x) The amino acids brought in the tRNA are bonded together by peptide bonds with the help of rRNA.
(xi) During this process, the ribosomes keeps on moving from one end of the mRNA to the other end by the distance of one triplet codon. This is called as 'translocation'.
(xii) Many such chains come together to form complex proteins.