• Shuffle
    Toggle On
    Toggle Off
  • Alphabetize
    Toggle On
    Toggle Off
  • Front First
    Toggle On
    Toggle Off
  • Both Sides
    Toggle On
    Toggle Off
  • Read
    Toggle On
    Toggle Off
Reading...
Front

Card Range To Study

through

image

Play button

image

Play button

image

Progress

1/18

Click to flip

Use LEFT and RIGHT arrow keys to navigate between flashcards;

Use UP and DOWN arrow keys to flip the card;

H to show hint;

A reads text to speech;

18 Cards in this Set

  • Front
  • Back


5. Enzymes to replicate the viral genome

What is the template for synthesis of viral mRNA in host machinery?


a. single stranded RNA


b. single stranded DNA


c. double stranded RNA


d. double stranded DNA

d. double stranded DNA

1. dsDNA

1. (+)ss RNA genomes may be translated to make viral protein

How are (+)ssRNA viruses replicated?

(+)ss RNA > (-)ssRNA


(-)ssRNA > (+)ssRNA *




Need to make - from +, and then make more desired + from the produced -

5. All of the above.

3. The bonding contacts of subunits are usually non-covalent

5. All of the above

3. Diffusion of virus particles on the cytoplasm



4. The endosome becomes acidified

1. RdRp (rna dependent rna polymerase) may initiate de novo or require a primer


3. Circularization of template for initiation of RNA synthesis




Polio virus is a + RNA that is converted to - rNA and back to + RNA and also virus particles can be created.


Primer required, VRG


Elim:


1. x, mRNA same as genome in + RNA viruses


2. x, occurs w/ primer (VRG)


3. correct


4. x

Classification of viruses?

> nucleic acid


= RNA or DNA


= segmented or non segmented


= linear or circular


= SS or DS


(if SS: + sense (translatable), - sense (complementary to mRNA)


> capsid


> presence of envelope


> replicative strategy

Viral RNA does not undergo which of the following processes?


a. poly adenylation


b. 5' capping


c. removal of all introns


d. export into the cytoplasm


e. degradation if not needed



c. removal of all interns




Expl: There is partial splicing (some introns remain on the viral mRNA), everything else remains.


a, b, d, e: correct


c: incorrect (right answer)

Describe different RNA polymerases

RNA poly I: pre-rRNA


RNA poly II: pre-mRNA


RNA poly II: pre-tRNA

What binds to the TATA sequence?


a. TFIa


b. TFIIa


c. TFIIb


d. TFIId


e. TFIIIb

TFIId

The vast majority of regulation occurs at what level?


a. DNA replication


b. transcription


c. post transcriptional modification


d. translation


e. post translational modification

b. transcription

3. Circularization of template for initiation of RNA synthesis