Question 3A 50 kDa protein has a minimum radius 2.4nm, while a 20 kDa protein has a minimum radius of 1.78 nm. Based on this, which of thefollowing is likely true of the nuclear pore complex?mRNA (2 x 300 nm) would be able to pass freely through the porea protein with a radius of 1.5 nm would require a NLS for transport into the nucleusthe NPC would not allow proteins with a radius >2.5 nm to pass through freely, regardless of the protein's concentrationthe NPC allows proteins with a radius <1.78 nm to pass freely, and movement is dependent only on the protein's concentrationgradientHide Feedback for Question 3<10 KDa : passively controlled by concentration10-40 KDa : passive but regulated by calcium>40 kDa: requires active transport via importin/exportin Question 4If a cell had an over-expression of importin, it could result in increased import of proteins into the nucleus, but only if there was alsoa large enough supply of Ran-GTP in the nucleoplasm.TrueFalseHide Feedback for Question 4Ran-GTP is required for the cargo protein to be released in the nucleoplasm, and for importin to recycle back to the cytoplasm.

3 Answer the NPC would not allow proteins with a radius >2.5 nm to pass through freely,…

Answered: Question 3 A 50 kDa protein has a…

Biochemistry

9th Edition

ISBN:9781319114671

Author:Lubert Stryer, Jeremy M. Berg, John L. Tymoczko, Gregory J. Gatto Jr.

Publisher:Lubert Stryer, Jeremy M. Berg, John L. Tymoczko, Gregory J. Gatto Jr.

Chapter1: Biochemistry: An Evolving Science

Section: Chapter Questions

Problem 1P

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Question 11 Which of the following is the convention used to specify the sequence of bases in DNA? A start at the end closest to thymine B) start at the end closest to the first adenine (c) 3'-5' D) 5'-3'
Question 153 Protein structure: What determines the primary structure of a cellular protein? the RNA sequence of the ribosome which translates the mRNA O the TRNA sequence of these molecules which translate the protien's gene O the DNA sequence of the protein's gene O the type of solutes surrounding the ribosomes at the time of protein synthesis Not
Question 1 A 60-year-old woman was recently given a diagnosis of advanced non- small cell lung cancer. She is going to begin treatment with cisplatin 100 mg/m 2 plus vinorelbine 30 mg/m2. Discuss your pharmacological plan
Question 4
112
QUESTION 30 If a cell could not make histones, what would happen? O Its DNA would not be packaged properly O Its DNA would get shorter O It could not transport DNA outside of the nucleus Transcription would not be able to take place.
question 48 which of the following options is NOT a function of the Golgi apparatus ed Select one: out of O a. Synthesis of polysaccharides like cellulose question O. b. Modification of glycoproteins O c. Sorting and packaging of materials into vesicles O d. Synthesis of pectins O e. Tagging of vesicles with molecular markers
QUESTION 8 What is the rate-limiting step in the assembly of both microtubules and actin microfilaments that occurs in cells but does not occur in a test tube when purified monomers in the tube together with the appropriate energy source? A Elongation B Nucleation C Treadmilling D Depolymerization E Association with binding proteins
QUESTION 12 The RNA World Hypothesis is kind of asking the question 'what inside the cell is alive'. Which of the following statements or ideas is least relevant, least supportive, of the RNA World Hypothesis? A. RNAS have the potential for replication using complementary base pair interactions. O B. RNAS can fold up into structural objects with specific functions, such as tRNAS. Other RNA objects are responsible for important reactions such as pre-MRNA splicing and peptide bond formation. O C. Ribonucleotides in the form of the dinucleotides NAD and FAD act as critical carries of electrons and protons for oxidation/reduction reactions. O D. The flow of information described by the Central Dogma, i.e., DNA goes to RNA goes to protein, shows that RNA is at the center. O E. One of the ribonucleotide building blocks, ATP, serves as the most important source of energy for almost all aspects of cellular metabolism. Other ribonucleotides such as GTP and CAMP often act as switching and…
QUESTION 16 Which of the following best describes the proper sequential order of the dogma of molecular genetics? O A. Deoxyribonucleic acid is converted to a pre-messenger ribonucleic acid that is modified to a messenger ribonucleic acid that is converted to a polypeptide chain, which is modified to a protein. B. Nucleic acid is converted to a pre-messenger ribonucleic acid that is modified to a messenger ribonucleic acid, which t is converted to a polypeptide chain that is modified to a protein. OC. Nucleotide is converted to a messenger ribonucleic acid that is modified to a polypeptide chain, which is modified to a protein. O D. Polynucleotide is converted to a pre-messenger ribonucleic acid that is modified to a messenger ribonucleic acid that is converted to a polypeptide chain, which is modified to a protein. O E. None of the answers (A, B, C, and D) is the correct answer choice for this question. QUESTION 17 Which of the following statements is precisely correct/true? O A.…
Question 6. If cells are infected with a vesicular stomatitis virus (VSV) strain in which a viral gene (VSVG) is fused to the green fluorescent protein gene, when the chimeric protein is synthesized, what compartments will it visit and in what order before until it leaves the cell?
Question 23 Short wavelength irradiation (~ 260 nm) of cells will cause which abnormality? (best answer) O hydrolysis of MRNA O cell membrane lysis O Thymine dimers in DNA O protein denaturation Question 24 Are there repair mechanisms for damage caused hy ultraviolet irradiation? If ves explain

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