You synthesize a synthetic mRNA, (AAG)n. If you were to translate this ribonucleotide molecule in a...
You synthesize a synthetic mRNA, (AAG)n. If you were to translate this ribonucleotide molecule in a system with all possible aminoacyl-tRNAs, what products would you expect to see? Why would you see only two products with a synthetic mRNA, (GUS)n? What are they?
Homework Answers
AAG codes for the amino acid Lysine. So the end product of translation with (AAG)n will polylysine polypeptide.
This is because there are only 20 amino acids and 64 codons in the genetic code.
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You synthesize a synthetic mRNA, (AAG)n. If you were to
translate this ribonucleotide molecule in a...
How many ATP or ATP equivalents would it take to translate the coding region of an...
How many ATP or ATP equivalents would it take to translate the coding region of an mRNA that encoded 277 many amino acids? (Include the energy used to set up the ribosome, charge the tRNAs using an aminoacyl-tRNA synthetase, choose the correct tRNA, translocate the ribosome, and tear down the ribosome complex at termination. This answer will not include the energy required to synthesize the mRNA in the first place, only the energy to translate 1 polypeptide. I'm not sure...
3)- Show two routes as to how you would synthesize molecule A using appropriate organo-lithium. Grignard or hydride reagents. Note, a total of three products are expected. Make sure you display al...
3)- Show two routes as to how you would synthesize molecule A using appropriate organo-lithium. Grignard or hydride reagents. Note, a total of three products are expected. Make sure you display all intermediates and the complete mechanism demonstrating bond retro-breaking in all synthetic steps (ie, show all reactive electrons). HO IA]
3)- Show two routes as to how you would synthesize molecule A using appropriate organo-lithium. Grignard or hydride reagents. Note, a total of three products are expected. Make sure...
QUESTION 32 The genetic code was deciphered in part by experiments in which synthetic polynucleotides were...
QUESTION 32 The genetic code was deciphered in part by experiments in which synthetic polynucleotides were used as mRNAs to direct protein synthesis in cell-free extracts (in-vitro system). In the test tube, artificial conditions were used that allowed ribosomes to start protein synthesis anywhere on an RNA molecule, without the need of a translation start codon, as required in a living cell. What type(s) of polypeptides would you expect to be synthesized if the polynucleotide 5'- CAUCAUCAUCAUCAUCAUC...-3' were used as...
3. The MO diagram below is that of only the n-electron system of the molecule CH2O....
3. The MO diagram below is that of only the n-electron system of the molecule CH2O. The ncc bonding molecular orbital (which has two bonding electrons) shows oxygen bearing more electron density than carbon in the π bond, would you expect the carbonatorn in CH2Oto havemore orless partial positive charge compared to ethene, CH4? Please briefly explain your reasoning (antibonding) 0 0 t (bonding) ช้
5. A diatomic molecule (like H2) can be modeled as two atoms of equal mass m,...
5. A diatomic molecule (like H2) can be modeled as two atoms of equal mass m, connected by a rigid massless rod of length a. The system is free to rotate in 3-D. I claim the moment of inertia of this molecule around its ceater of mass is a. (Feel free to convince yourself that factor of k is coect!) Big hint if you 're having trouble getting started: this problem is directly related to McIntyre's Ch A) The energy...
1) Choose one molecule from the set and create an 8-step synthesis scheme using the chosen...
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Dibenzalacetone Synthesis PURPOSE: purpose of this lab exercise is to synthesize dibenzalacetone by means of an...
Dibenzalacetone Synthesis PURPOSE: purpose of this lab exercise is to synthesize dibenzalacetone by means of an aldol condition. INTRODUCTION: Wow, is it wet in here or what? That's what happens when you condense, right? No, that is not right, you say! You can condense things without getting wet in organic chemistry. Think about aldol condensations, you tell me. Yes. yes..of course you are correct: organic condensations dont get you wet. They get you a new product. Silly me Aldol condensation...
Imagine you are exploring the Australian Outback and stumble across two perfectly identical fields separated by...
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Question 2 (1 point) In order to target a protein to the endomembrane system, which of...
Question 2 (1 point) In order to target a protein to the endomembrane system, which of the following is required first? O a ER bound ribosome signal peptide on the N terminus of the polypeptide chaperone protein signal peptide on the C terminus of the polypeptide O signal-recognition particles A tRNA is chemically modified so that the amino acid bound is different than the one specified by its anticodon. Which codon in the mRNA would the tRNA recognize: the one...
In this experiment we will synthesize dibenzalacetone form benzaldehyde and acetone, taking advantage of the acidity...
In this experiment we will synthesize dibenzalacetone form benzaldehyde and acetone, taking advantage of the acidity of the hydrogen atoms located on the a carbons in acetone. There are a possibility of three products, the trans/trans, the trans/cis, and the cis/cis. Only one is isolated. 1) Draw all three products that could form in this reaction. 2) How will we determine which products have been formed? One way will be to check the melting points of the products. The other...
3)- Show two routes as to how you would synthesize molecule A using appropriate organo-lithium. Grignard or hydride reagents. Note, a total of three products are expected. Make sure you display all intermediates and the complete mechanism demonstrating bond retro-breaking in all synthetic steps (ie, show all reactive electrons). HO IA]
3)- Show two routes as to how you would synthesize molecule A using appropriate organo-lithium. Grignard or hydride reagents. Note, a total of three products are expected. Make sure...
QUESTION 32 The genetic code was deciphered in part by experiments in which synthetic polynucleotides were used as mRNAs to direct protein synthesis in cell-free extracts (in-vitro system). In the test tube, artificial conditions were used that allowed ribosomes to start protein synthesis anywhere on an RNA molecule, without the need of a translation start codon, as required in a living cell. What type(s) of polypeptides would you expect to be synthesized if the polynucleotide 5'- CAUCAUCAUCAUCAUCAUC...-3' were used as...
3. The MO diagram below is that of only the n-electron system of the molecule CH2O. The ncc bonding molecular orbital (which has two bonding electrons) shows oxygen bearing more electron density than carbon in the π bond, would you expect the carbonatorn in CH2Oto havemore orless partial positive charge compared to ethene, CH4? Please briefly explain your reasoning (antibonding) 0 0 t (bonding) ช้
5. A diatomic molecule (like H2) can be modeled as two atoms of equal mass m, connected by a rigid massless rod of length a. The system is free to rotate in 3-D. I claim the moment of inertia of this molecule around its ceater of mass is a. (Feel free to convince yourself that factor of k is coect!) Big hint if you 're having trouble getting started: this problem is directly related to McIntyre's Ch A) The energy...
1) Choose one molecule from the set and create an 8-step synthesis scheme using the chosen molecule as your starting material. You need to write the complete set of reagents and draw the product expected from each step. Reagents typically used together are considered one step, eg. 1) LAH 2) H.O should be considered as one step Your 8 steps must include at least one reaction from each of the chapters, aldehydes and ketones, carboxylic acid derivatives, alcohols. You can...
Dibenzalacetone Synthesis PURPOSE: purpose of this lab exercise is to synthesize dibenzalacetone by means of an aldol condition. INTRODUCTION: Wow, is it wet in here or what? That's what happens when you condense, right? No, that is not right, you say! You can condense things without getting wet in organic chemistry. Think about aldol condensations, you tell me. Yes. yes..of course you are correct: organic condensations dont get you wet. They get you a new product. Silly me Aldol condensation...
Question 2 (1 point) In order to target a protein to the endomembrane system, which of the following is required first? O a ER bound ribosome signal peptide on the N terminus of the polypeptide chaperone protein signal peptide on the C terminus of the polypeptide O signal-recognition particles A tRNA is chemically modified so that the amino acid bound is different than the one specified by its anticodon. Which codon in the mRNA would the tRNA recognize: the one...
In this experiment we will synthesize dibenzalacetone form benzaldehyde and acetone, taking advantage of the acidity of the hydrogen atoms located on the a carbons in acetone. There are a possibility of three products, the trans/trans, the trans/cis, and the cis/cis. Only one is isolated. 1) Draw all three products that could form in this reaction. 2) How will we determine which products have been formed? One way will be to check the melting points of the products. The other...
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