Explain the mechanism of leaky ribosomal scanning.
Explain the mechanism of leaky ribosomal scanning.
Homework Answers
Leaky scanning is a phenomenon in which a weak initiation codon triplet on mRNA is sometimes skipped by ribosome in translation initiation. The 40S ribosomal subunit continues scanning to further initiation codon. The weak initiation codon can be an ACG, or an ATG in a weak Kozak consensus context. This means that If upstream start codons are in a sequence context which is a poor match for the Kozak consensus A/GCCATGG then a proportion of scanning complexes may fail to initiate at the AUG and continue scanning to the next AUG. This is known as leaky scanning.
QUESTION 99 Which of the following occurs during "leaky scanning: A. the ribosome will bind even...
QUESTION 99 Which of the following occurs during "leaky scanning: A. the ribosome will bind even in the absence of a cap group OB. the cell begins to rapidly lose fluids OC. the ribosome skips at least one AUG and begins at a subsequent AUG downstream D.ribosomes begin to stutter at a UUUUUUU sequence O E. RNA-dependent RNA polymerase begins to stutter at a UUUUUUU sequence QUESTION 100 Transcription and genome replication occur inside the capsid for which of the...
Explain how a "leaky bucket" can be used to illustrate the utilitarian argument that governments should...
Explain how a "leaky bucket" can be used to illustrate the utilitarian argument that governments should not attempt to completely equalize individual incomes.
Explain the difference between port scanning and port sweeping.
Explain the difference between port scanning and port sweeping.
Tetracycline inhibits protein synthesis by which mechanism? It interacts with the small ribosomal subunit, blocking access...
Tetracycline inhibits protein synthesis by which mechanism? It interacts with the small ribosomal subunit, blocking access of the aminoacyl-tRNA to the mRNA-ribosome complex. It binds to the 305 subunit and distorts its structure, interfering with the initiation of protein synthesis. It binds irreversibly to a site on the 50S subunit of the bacterial ribosome, thus inhibiting translocation. It inactivates the eukaryotic elongation factor, eEF-2, thus preventing translocation.
Organisms with 50S ribosomal subunits are found in domain 1. Eukarya II. Bacteria Both I and...
Organisms with 50S ribosomal subunits are found in domain 1. Eukarya II. Bacteria Both I and II Only 11 Only I Neither lor 10 Which electrons produce the image in scanning electron microscopy? electrons originating from the photoelectric gun electrons moving randomly through the atmosphere secondary electrons originating from the surface coating of the specimen the primary electrons
e. Draw a schematic diagram of the structure and explain how it works. Scanning electron microscope...
e. Draw a schematic diagram of the structure and explain how it works. Scanning electron microscope Thank you so much.
Explain why gold coating is required when preparing samples for the scanning electron microscopy (SEM)?
Explain why gold coating is required when preparing samples for the scanning electron microscopy (SEM)?
in cohesive sentences explain how Differential Scanning Calorimetry (DSC) instrument works. Illustrate your explanation with a...
in cohesive sentences explain how Differential Scanning Calorimetry (DSC) instrument works. Illustrate your explanation with a simple but realistic drawing. What kind of physical properties can be measured with DSC? What are the differences between Differential Scanning Calorimetry (DSC) vs Differential Thermal Analysis (DTA)?
As the owner of a small business, explain how you would organize a strategic information scanning...
As the owner of a small business, explain how you would organize a strategic information scanning system. How would you organize such a system in a large organization for your curent/former employer?
4) What happens when the ribosomal complex encounters a stop codon? Explain which, if any, tRNAs...
4) What happens when the ribosomal complex encounters a stop codon? Explain which, if any, tRNAs or proteins are involved 5)If the following DNA strand was used as a template, what would the sequence of an RNA be? 5́ GTACCGTC 3́ 6) How does acetylation of the chromatin affect the translation of genes contained within? In other words, does acetylation allow or inhibit transcription, and how?
QUESTION 99 Which of the following occurs during "leaky scanning: A. the ribosome will bind even in the absence of a cap group OB. the cell begins to rapidly lose fluids OC. the ribosome skips at least one AUG and begins at a subsequent AUG downstream D.ribosomes begin to stutter at a UUUUUUU sequence O E. RNA-dependent RNA polymerase begins to stutter at a UUUUUUU sequence QUESTION 100 Transcription and genome replication occur inside the capsid for which of the...
Tetracycline inhibits protein synthesis by which mechanism? It interacts with the small ribosomal subunit, blocking access of the aminoacyl-tRNA to the mRNA-ribosome complex. It binds to the 305 subunit and distorts its structure, interfering with the initiation of protein synthesis. It binds irreversibly to a site on the 50S subunit of the bacterial ribosome, thus inhibiting translocation. It inactivates the eukaryotic elongation factor, eEF-2, thus preventing translocation.
Organisms with 50S ribosomal subunits are found in domain 1. Eukarya II. Bacteria Both I and II Only 11 Only I Neither lor 10 Which electrons produce the image in scanning electron microscopy? electrons originating from the photoelectric gun electrons moving randomly through the atmosphere secondary electrons originating from the surface coating of the specimen the primary electrons
Most questions answered within 3 hours.
-
Where is the error in this code sequence?
String s1 = "Hello";
String s2 = "ello";...
asked 11 months ago -
Financial data for Joel de Paris, Inc., for last year
follow:
Joel de Paris, Inc.
Balance...
asked 11 months ago -
Consider this reaction:
Al2(SO4)3 (aq)+ BaCl3
(aq) Al2Cl6 (aq)- +
3BaSO4(s) . What is the...
asked 11 months ago -
Suppose that Savneet is considering increasing her
recent random sample from 20 car rentals to 40...
asked 11 months ago -
Trucks arrive at an unloading terminal at an average rate of 120
per hour.
Trucks arrive...
asked 11 months ago -
Why are methanol and ethanol completely soluble in water while
octanol is not very little soluble....
asked 11 months ago -
A facilities manager at a university reads in a research report
that the mean amount of...
asked 11 months ago -
When the CuSO4 is rehydrated by adding water to the anhydrous
compound, is this an endothermic...
asked 11 months ago -
A ray of sunlight is passing from diamond into crown glass; the
angle of incidence is...
asked 11 months ago -
A block of mass 0.249 kg is placed on top of a light, vertical
spring of...
asked 11 months ago -
how do the kidneys compensate in the presences of acidosis
a) trigger hyperventilate
b) reserve acid...
asked 11 months ago -
Question 501 pts
The rental rate of capital to the firm increases. Which of the
following...
asked 11 months ago