Identify the following by describing their functions: EF-G, EF-Tu, EF-Ts, EF-P, and peptidyl transferase
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Q: What is a peptidyl transferase,?
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Q: For each of the following genotypes, explain how mutation (identified by a (-) will affect the…
A:
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Identify the following by describing their functions: EF-G, EF-Tu, EF-Ts, EF-P, and peptidyl transferase
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- Each type of molecule listed below is recognized by a specific class of nuclear import receptor (importin) or nuclear export receptor (exportin). For each type of molecule, state whether you think it is recognized by an importin or exportin and explain why (in terms of where that molecule is synthesized, what that molecule does, and where it does it). (a) RNA polyermase II: (b) ribosomal protein: (iii) †RNA:What is a peptidyl transferase,?Why nonhomologous end-joining (NHEJ) is helpful ?
- For each of the following genotypes, explain how mutation (identified by a (-) will affect the organism grown in lactose medium. Indicate whether a) B-galactosidase will be synthesized or not, b) synthesis of B-galactosidase is inducible (1) or constitutive (C) and c) growth of the organism will occur or not. i. I+P+0-Z+Y+A+/l+P+O+Z-Y-A- ii. I-P+0+Z+Y+A+/I+P-O+Z+Y+A+TRUE OR FALSE a) The structure of the purines and pyrimidines make them able to undergo keto-enol tautomerism. b) A unique 5'CCA terminal sequence is found in all tRNAs to be able to carry the correct amino acid to the ribosome.For E. coli strains with the lac genotypes show below, use a plus sign (+) to indicate the synthesis of β-galactosidase and permease and a minus sign (–) to indicate no synthesis of the proteins.
- In the: A mutated TBP protein Explain: (a) What is the process affected? (b) What is the Effect on the process? (c) Does it affect prokaryotes, eukaryotes or both?Define peptidaseGiven the following phenotypes, explain how the mutation (identified by a (-) superscript) will affect the E. coli grown in lactose medium. l+p+o+z-y+ i-p+o+z+y+ l+p+o-z+y+ l+p-o+z+y+
- Which statement is true for the active site residues of RNase A, lysozyme, or trypsin? Select any/all answers that apply. O A. His12 (RNase A) initially acts as an acid. O B. His119 (RNase A) initially acts as an acid. O C. Glu35 (lysozyme) initially acts as an acid. O D. His57 (trypsin) initially acts as an acid. O E. Ser195 (trypsin) initially acts as an acid.A species of bacteria can synthesize the amino acid histidine, so they do not require histidine in their growth medium. A key enzyme, which we will call histidine synthetase, is necessary for histidine biosynthesis. When these bacteria are given histidine in their growth medium, they stop synthesizing histidine intracellularly. Based on this observation alone, propose three different regulatory mechanisms to explain why histidine biosynthesis ceases when histidine is in the growth medium. To explore this phenomenon further, you measure the amount of intracellular histidine synthetase protein when cells are grown in the presence and absence of histidine. In both conditions, the amount of this protein is identical. Which mechanism of regulation is consistent with this observation?1) It is declared that some ribozymes are tightly bound to proteins. What isn't the function of those proteins? Select one: A) Regulate the enzymatic activities of the ribozyme B) Conduct the enzymatic function of the ribozyme C) Help the RNA fold properly D) Stabilize the RNA and the ribozyme 2) What promotes the histone chaperone - CAF-I aggregation to the replication machinery? Select one: A) Nucleosome tall modification B) sliding DNA clamp C) Clamp Loader D) DNA polymerase