Hi, this video explains how transcription and translation of DNA is important in protein synthesis. Protein synthesis is important in biochemical engineering as they are used in bioreactes that make off food and medicines. So transcription, as the DNA strand on winds RNA polymerase causes the ribose nucleotides A, C, G and U to bind to their complementary base pairings. As a result, you get a single strand of RNA known as PREAM RNA. Then the PREAM RNA strand on the ghost splicing, whereas splices on enzyme cuts the strand removing all the genes that are not expressed known as introns, keeping only the genes that are expressed known as X-ones. As a result, a messenger RNA of X-ones exits the nucleus through its pores and attaches to a ribosome on the rough endoclasmic reticulum. Translation, the ribosome binds to a star codon which consists of three bases that cut for RNA amino acid. As the ribosomes move along the mRNA strand, translating RNA molecules will an anti-codon on one end and amino acid attached on the other end bind to their complementary codons. The first tRNA molecule binds to the mRNA strand where the amino acid it holds binds to its neighboring amino acid on the second tRNA and so on. As more tRNA molecules bind to the mRNA strand, more amino acids form polypeptide bonds. As the ribosome reaches the stop codon, the tRNA, mRNA strand and the link of amino acids are separated. Finally, the polypeptide chain of amino acids falls into a more complex structure and so complex protein is released.