Translation https www youtube comwatc h vg G
Translation https: //www. youtube. com/watc h? v=g. G 7 u. Csk. UOr. A
Translation The edited m. RNA leaves the nucleus and travels to the ribosomes in the cytoplasm for translation.
Translation The edited m. RNA leaves the nucleus and travels to the ribosomes in the cytoplasm for translation. Ribosomes move along the m. RNA and ‘read’ the coded message, using the message to link amino acids in the correct order to form a polypeptide.
Translation The edited m. RNA leaves the nucleus and travels to the ribosomes in the cytoplasm for translation. Ribosomes move along the m. RNA and ‘read’ the coded message, using the message to link amino acids in the correct order to form a polypeptide. The bases in m. RNA are read by the ribosomes in a sequence of three (called a codon)
Translation Each codon matches to a triplet in DNA, therefore coding for a particular amino acid.
Translation Each codon matches to a triplet in DNA, therefore coding for a particular amino acid. It is the function of the ribosomes and the third type of RNA, t. RNA that de-codes m. RNA and translates it into the correct amino acid sequence of the polypeptide.
t. RNA (transfer RNA) Are all small (of about 70 -90 nucleotides) folded back on themselves, and similar in shape.
t. RNA (transfer RNA) Are all small (of about 70 -90 nucleotides) folded back on themselves, and similar in shape. Have a 3 based sequence of CCA at the outer end, to which the amino acid attaches.
t. RNA (transfer RNA) Are all small (of about 70 -90 nucleotides) folded back on themselves, and similar in shape. Have a 3 based sequence of CCA at the outer end, to which the amino acid attaches. Have an unpaired 3 -base sequence at the ‘fold’ called an anticodon, which bonds to the complementary codon of m. RNA at the ribosome.
Translation cont. Each t. RNA attached to one of the 20 different amino acids in the cytoplasm.
Translation cont. Each t. RNA attached to one of the 20 different amino acids in the cytoplasm. An enzyme catalyses the bonding between the t. RNA and its specific amino acid.
Translation cont. Each t. RNA attached to one of the 20 different amino acids in the cytoplasm. An enzyme catalyses the bonding between the t. RNA and its specific amino acid. Ribosomes move along the m. RNA from the start codon (AUG) until one of the stop codons (UAA, UAG, UGA) is reached.
Translation cont. When the anticodon of the t. RNA matches the complementary codon of the m. RNA, the specific amino acid attached to that t. RNA is bonded into the polypeptide chain being formed.
Translation cont. When the anticodon of the t. RNA matches the complementary codon of the m. RNA, the specific amino acid attached to that t. RNA is bonded into the polypeptide chain being formed. Every time the ribosome moves along one codon, another amino acid is added into the polypeptide.
Translation cont. Usually, several ribosomes move along the m. RNA at any time, ensuring rapid synthesis of quantities of the needed protein.
Translation cont. Usually, several ribosomes move along the m. RNA at any time, ensuring rapid synthesis of quantities of the needed protein. When enough of the protein has been made, m. RNA is broken down by RNAase enzyme.
Translation cont. Usually, several ribosomes move along the m. RNA at any time, ensuring rapid synthesis of quantities of the needed protein. When enough of the protein has been made, m. RNA is broken down by RNAase enzyme. The complete polypeptide chain(s) coil and fold to form the protein.
- Slides: 21