Chang. Thus, a transcription factor binding code may influence codon choice and, consequently, protein evolution. View Answer, answer: a, explanation: To identify the amino-terminal amino acid residue, Sanger developed the reagent 1-fluoro-2, 4-dinitrobenzene (fdnb). This system allows selection to yield proteins containing unnatural amino acids should such sequences functionally outperform ones containing only the 20 canonical amino acids. Advertisement Sanfoundry Global Education Learning Series Biochemistry. And Smider, Vaughn. These experiments suggest that an expanded "synthetic" genetic code can confer a selective advantage in the directed evolution of proteins with specific properties. L., Mills,., Hyun,. Amino acids sequence in DNA can be determined by the order of their a) rRNA b) tRNA c) Nucleotides d) mRNA, view Answer, answer: c, explanation: By the order of nucleotides, amino acids sequence in DNA can be determined.
Code reduction proteinevolution
This set of Biochemistry Multiple Choice Questions Answers (MCQs) focuses on Protein Sequences and Evolution. Protein evolution with an expanded genetic code proceedings of the National Academy of Sciences of the United States of America, vol. A) 1-fluoro-2, 4-dinitrobenzene b) 1-fluoro-2, 3-dinitrobenzene c) 1-fluoro-2, 4-trinitrobenzene d) 1-fluoro-2, 3-trinitrobenzene. Despite redundancy in the genetic code ( 1 the choice of codons used is highly biased in some proteins, suggesting that additional constraints operate in certain protein-coding regions of the genome. language "English (US volume "105 pages " journal "Proceedings of the National Academy of Sciences of the United States of America issn "0027-8424 number "46). A) Cleaving, sequencing and ordering b) Sequencing, ordering and cleaving c) Ordering, cleaving and sequencing d) Ordering, sequencing and cleaving View Answer Answer: a Explanation: First fragmenting of a peptide is done followed by sequencing and ordering the peptide fragments. A) Phenylisothiocyanate b) CF3 cooh c) fdnb d) Phenylthiocarbonyl, view Answer, answer: c, explanation: fdnb is involved in Sangers method. ; Smider, Vaughn. ( 4 ) reveal that transcription factors bind within protein-coding regions (in addition to nearby noncoding regions) in a large number of human genes. Org/10.1073/pnas., liu, CC, Mack, AV, Tsao, ML, Mills, J, Hyun, SL, Choe, H, Farzan, M, Schultz, PG Smider, VV 2008, '.
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