What is the mechanism of diversity in translation

Assignment Help Biology
Reference no: EM13311974

Question 1: Many of the larger DNA viruses are able to enhance viral protein translation by coding for ribosomes that selectively translate viral proteins.

a. True b. false 

Question 2:  A viral messenger RNA has the following sequence:

AUG AGU GGG GCC CAU GGG AAA CCC AGG UUU

The following proteins are produced:

MetAsnGlyAlaHisGlyLysProArgPhe

MetGlyAsnProGly

What is the mechanism that generates this diversity?

A. Polyprotein Synthesis

B. Leaky Scanning

C. Suppression of Termination

D. Ribosomal frameshift 

Question 3: Some viruses are able to initiate translation at sites other than AUG(Methionine)?

a. True    b. false 

Question 4: A viral messenger RNA has the following sequence:

AUG AGU GGG GCC CAU GGG AAA CCC AGG UUU

The following proteins are produced:

MetAsnGlyAlaHisGlyLysProArgPhe...

MetAsnGlyAlaProTrpGluThrGlnVal...

What is the mechanism of diversity in translation of this viral mRNA?

Question 5: The genomes of (+) RNA viruses can be translated immediately upon cellular entry, even though they do not possess a 5' 7-methylguanosine cap due to the presence of this structure at the 5' end of the genome [x].

Question 6: Most viral infections induce activation of the eIF2a kinase PKR which halts protein translation in an infected cell. Which of the following mechanism enable viruses to evade the antiviral effects of PKR (Select all that apply)?

A. Viral protein inhibits eIF2a phosphatase.

B. Viral proteins inhibit dsRNA binding to PKR

C. Virus produces its own kinase that phsophorylates eIF2a.

D. Viral protein binds to PKR dsRNA binding site and activates PKR autophosphorylation.

E. Viral proteins act as pseudo-substrates that inhibit PKR kinase activity

Question 7: Describe how picornaviruses are able to produce multiple proteins from a single mRNA (Limit 3-5 sentences).

Reference no: EM13311974

Questions Cloud

What is the change in energy of the capacitor : A parallel-plate capacitor in air has a plate separation of 1.42 cm and a plate area of 25.0 cm2. What is the change in energy of the capacitor
How fast did he need to drive for a doppler shift this large : A college student who was late for his physics class drove through a red traffic light, How fast did he need to drive for a Doppler shift this large
Find expressions for the magnitude and direction : The electric potential in a region is V=-Vo(r/R), Find expressions for the magnitude and direction of the electric field in this region
Find the speed with which the pebble strikes the ground : A slingshot fires a pebble from the top of a building at a speed of 14.0 m/s. The building is 28.0 m tall. Ignoring air resistance, find the speed with which the pebble strikes the ground
What is the mechanism of diversity in translation : Most viral infections induce activation of the eIF2a kinase PKR which halts protein translation in an infected cell. Which of the following mechanism enable viruses to evade the antiviral effects of PKR
Find mechanical energy that is lost as result of collision : An eagle (mA = 4.3 kg) moving with speed vA = 7.8 m/s is on a collision course with a second eagle (mB = 5.6 kg) moving at vB = 10.2 m/s in a direction perpendicular to the first
Determine required spacing of shear reinforcement over span : determine the required spacing of shear reinforcement over the span of a 28-in-wide and 18-in-deep beam with a clear span equal to 30 ft. 2 in. the beam suports a total factored uniformly distributed load of 5.0 kips/ft.
Prepare a cash-flow budget and a profit budget for gringotts : Prepare a cash-flow budget and a profit budget for Gringotts Ltd on the basis of Strategy 1. The budgets should be split into quarterly intervals showing cash-flow and profit forecasts for each individual quarter.
Calculate the error in the sense of least square : Calculate the error in the sense of least square when using the three models with the values.

Reviews

Write a Review

Biology Questions & Answers

  Immune response to infectious disease

It is a very curcial concept to understand how the immune response is mounted against viruses, bacteria, protozoans and helminthes. For an effective immune response, both innate and adaptive immunity should work together.

  A review on advanced glycated end products (ages)

This Project report elaborates a critical review of important elements attached to Advanced Glycated End Products (AGEs). It is very crucial to understand the process called Millard reaction.

  Plastic as a soil stabilizer

Soil stabilization is the permanent physical and chemical alteration of soils to enhance their physical properties. Stabilization can increase the shear strength of a soil and control the shrink-swell properties.

  Principles of microbiology

This assignment has three parts which contains questions related to Microbiology. It contains basic principles of microscopy, staining techniques in microbiology and microbial growth in the food industry.

  List the biologic functions

Lipid metabolites are often seen as key elements in cellular signaling. Is this unique? Please provide several examples of the function of lipids as key elements in signal arrays and list the biologic functions these signals affect?

  Biologic function relationships

Please describe how one might search for chemical structure, biologic function relationships, involving small molecular weight lipophylic compounds. Provide one example.

  Case study on patient in the haematology laboratory

Write a case study which detailing a scenario of a patient being investigated in the Haematology laboratory.

  Use of pcr and genetic approaches in biotechnology

The use of PCR and genetic approaches in biotechnology

  Describe the role of this enzyme in honey

Glucose oxidase is an enzyme that can be used for measurements of glucose levels by combining this reaction with an oxygen probe.

  Genetic problems

What phenotypic ratio would you get if you crossed a white mouse and a heterozygous brown mouse?

  Prepare an essay on nosocomial infection

Prepare an essay on nosocomial infection.

  Monitoring and recording the blood pressure

To increase the awareness of monitoring and recording the blood pressure of patients and practice measuring blood pressure in a safe environment.

Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd