A simplified model of protein synthesis is shown here. How might this model be revised to show a more accurate depiction of protein synthesis? DNA Process 1 MRNA Process 2

Below are the general steps of protein synthesis. What is the correct sequence of protein synthesis? 1-ribosome bonds amino acids together; 2-mRNA leaves the nucleus; 3- tRNA molecules pick up amino acids; 4-DNA double helix unwinds; 5-tRNA anticodon links with mRNA codon; 6-polypeptide chain completed; 7-mRNA binds to ribosome; 8-mRNA transcibed

You plan to synthesize a peptide to be used as a vaccine to treat melanoma, a particularly aggressive form of skin cancer. Normally, gp100, a protein on the surface of melanocytes, activates cell growth when it is bound by its ligand. Activation of the growth pathway depends on the presence of threonine in the ligand. The effective peptide vaccine will mimic the natural ligand, but won’t cause cell growth and division. Below is the sequence of the natural ligand:   LDMKTAG   In order to ensure your newly designed peptide vaccine does not cause cell growth upon binding, you must substitute the Threonine residue at position 5. What amino acid would you replace it with, bearing in mind that the peptide should still be similar enough to bind to the gp100 protein in the surface of melanocytes. Explain your choice. Your vaccine will be administered as a topical cream, and you require your peptide to have an overall neutral charge in order to be functional. At what pH should you formulate…

Which of the following statements about the splicesome is correct? The spliceosome controls the translation process, ensuring that only exons are translated. O The spliceosome removes introns into mRNA sequences before translation. O The spliceosome inhibits transcription of noncoding DNA regions. The spliceosome contains both protein and a functional type of RNA known as SİRNA