Homework Answers
1. Correct answer:- (b) in a ring around the outside of the
nuclear envelope.
Explanation:- nuclear proteins have tendency to go into nucles
through nuclear membrane, so these are deposited around nuclear
membrane.
2. Correct answer:- condensin and cohesin
Explanation:- cyclin B-CDK1 regulate the condensin and cohesin
proteins.
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For proteins that normally are nuclear, deletion of the nuclear localization signal and injection of the protein...
all please 2. Which of the following is an example of posttranslational modification? a. Glycosylation b....
all please
2. Which of the following is an example of posttranslational modification? a. Glycosylation b. Protcolysis c. Palmitoylation d. All of the above 3. The growing polypeptide chain coming off the ribosomal complex is fairly unstable. It has a tendency to fold back on itself and can aggregate with adjacent polypeptides, and these processes, if allowed to occur, would yield degraded, improperly folded, or large aggregates of nonfunctional proteins. How does the cell prevent this from occurring? 4. Transcriptionally...
24.Consider a transcription regulatory protein that has both a nuclear localization and a nuclear export signal...
24.Consider a transcription regulatory protein that has both a nuclear localization and a nuclear export signal and is normally found both in the nucleus and in the cytosol at comparable concentrations. This protein has a high-affinity binding partner in the nucleus. Upon activation of a certain signaling pathway, the binding partner is ubiquitylated and degraded. As a result of this,... the transcription regulatory protein accumulates in the nucleus. the transcription regulatory protein accumulates in the cytosol. expression of its target...
A protein that has an internal ER-signal sequence and a nuclear localization might end up in...
A protein that has an internal ER-signal sequence and a nuclear localization might end up in the extracellular matrix. in the cytosol. inside a lysosome. o in the plasma membrane.
In order to direct the proteins to the ER they must have added the nuclear localization...
In order to direct the proteins to the ER they must have added the nuclear localization signal (NLS) signal recognition particle (SRP) dolichol phosphate unit (DPU) ubiquitin recognition signal (URS) The purpose of dolichol phosphate is to assemble properly the protein in the ribosome introduce sugar units in the middle of a protein activate the protein for sugar addition carry the sugars to be introduced after protein synthesis Given the importance of glucagon in homeostasis, it must have a lot...
Double layer (bilayer) of phospholipid molecules Transmembrane Phospholipid bilayer protein Integral proteins Peripheral proteins Cytoplasmic side...
Double layer (bilayer) of phospholipid molecules Transmembrane Phospholipid bilayer protein Integral proteins Peripheral proteins Cytoplasmic side of membrane Cholesterol molecules Hydrophobic fatty acid "tail" Hydrophilic phosphate "head Figure 3-2 Structures of the Cell Membrane Questions 4. Match the cellular components in column A with the descriptions in column B. Place the letter of your choice in the space provided. Column A a. Chromatin b. Cytoplasm c. Endoplasmic reticulum d. Golgi apparatus e. Lysosome f. Microtubule g. Mitochondrion h. Nuclear envelope...
Please answer all questions 2 After isolating the rough endoplasmic reticulum from the rest of the...
Please answer all questions
2 After isolating the rough endoplasmic reticulum from the rest of the cytoplasm, you purify the RNAS attached to it. Which of the following proteins do you expect the RNA from the rough endoplasmic reticulum to encode? (a) (c) soluble secreted proteins plasma membrane proteins ER membrane proteins all of the above (b) (d) -13 In which cellular location would you expect to find ribosomes translating MRNAS that encode ribosomal proteins? (a) (c) the nucleus in...
－How can Chimeric proteins be used to study protein sorting? － What effect would the addition...
－How can Chimeric proteins be used to study protein sorting? － What effect would the addition of a lysosome‐targeting signal have on the subcellular localization of a. A protein that is normally cytosolic? b. A protein that is normally secreted?
The nuclear envelope is:
The nuclear envelope is: Select one:a. A single phospholipid bilayer surrounding genetic material in eukaryotic cells. b. A double membrane surrounding the chromosomes in eukaryotic cells. c. A double layer of protein surrounding the eukaryotic DNA that dissolves when the cell divides. d. A protein layer surrounding the nucleus.
27. Tou nave isolated the gene for a protein called nuculin (about O KDA) normally localized...
27. Tou nave isolated the gene for a protein called nuculin (about O KDA) normally localized in the nucleus. Based on the protein sequence analysis using a computer program, you find a potential nuclear localization signal (NLS). You want to know whether this potential NLS is sufficient to bring nuculin into the nucleus. Please design experiments to address your question. You can use what you learned in Biol 203 or Biol 300.
27. Tou nave isolated the gene for a protein called nuculin (about O KDA) normally localized...
27. Tou nave isolated the gene for a protein called nuculin (about O KDA) normally localized in the nucleus. Based on the protein sequence analysis using a computer program, you find a potential nuclear localization signal (NLS). You want to know whether this potential NLS is sufficient to bring nuculin into the nucleus. Please design experiments to address your question. You can use what you learned in Biol 203 or Biol 300.
all please
2. Which of the following is an example of posttranslational modification? a. Glycosylation b. Protcolysis c. Palmitoylation d. All of the above 3. The growing polypeptide chain coming off the ribosomal complex is fairly unstable. It has a tendency to fold back on itself and can aggregate with adjacent polypeptides, and these processes, if allowed to occur, would yield degraded, improperly folded, or large aggregates of nonfunctional proteins. How does the cell prevent this from occurring? 4. Transcriptionally...
24.Consider a transcription regulatory protein that has both a nuclear localization and a nuclear export signal and is normally found both in the nucleus and in the cytosol at comparable concentrations. This protein has a high-affinity binding partner in the nucleus. Upon activation of a certain signaling pathway, the binding partner is ubiquitylated and degraded. As a result of this,... the transcription regulatory protein accumulates in the nucleus. the transcription regulatory protein accumulates in the cytosol. expression of its target...
A protein that has an internal ER-signal sequence and a nuclear localization might end up in the extracellular matrix. in the cytosol. inside a lysosome. o in the plasma membrane.
Double layer (bilayer) of phospholipid molecules Transmembrane Phospholipid bilayer protein Integral proteins Peripheral proteins Cytoplasmic side of membrane Cholesterol molecules Hydrophobic fatty acid "tail" Hydrophilic phosphate "head Figure 3-2 Structures of the Cell Membrane Questions 4. Match the cellular components in column A with the descriptions in column B. Place the letter of your choice in the space provided. Column A a. Chromatin b. Cytoplasm c. Endoplasmic reticulum d. Golgi apparatus e. Lysosome f. Microtubule g. Mitochondrion h. Nuclear envelope...
Please answer all questions
2 After isolating the rough endoplasmic reticulum from the rest of the cytoplasm, you purify the RNAS attached to it. Which of the following proteins do you expect the RNA from the rough endoplasmic reticulum to encode? (a) (c) soluble secreted proteins plasma membrane proteins ER membrane proteins all of the above (b) (d) -13 In which cellular location would you expect to find ribosomes translating MRNAS that encode ribosomal proteins? (a) (c) the nucleus in...
27. Tou nave isolated the gene for a protein called nuculin (about O KDA) normally localized in the nucleus. Based on the protein sequence analysis using a computer program, you find a potential nuclear localization signal (NLS). You want to know whether this potential NLS is sufficient to bring nuculin into the nucleus. Please design experiments to address your question. You can use what you learned in Biol 203 or Biol 300.
27. Tou nave isolated the gene for a protein called nuculin (about O KDA) normally localized in the nucleus. Based on the protein sequence analysis using a computer program, you find a potential nuclear localization signal (NLS). You want to know whether this potential NLS is sufficient to bring nuculin into the nucleus. Please design experiments to address your question. You can use what you learned in Biol 203 or Biol 300.
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