Chpter 18~ 19 `20 Quiz 4 Flashcards
chapter 18~19
Many animal viruses acquire a__________ by budding ?
A. lysogen
B. Alu element
C. cell wall
D. membranous envelope
E. mutant tumor suppressor protein
membranous envelope
chapter 18~19
The chain terminatiing group on a ddNTP used in Sanger sequencing is _______ ?
A. 2’-H
B. 5’-phosphate
C. 5’- bisphospate
D. 3’- H
E. 3’- OH
3’- H
Chapter 18~19
Tobacco mosaic disease is caused by a _______ agent than other pathogens known at the time ?
A. more virulent
B. larger
C. less hydrophilic
D. smaller
E. less virulent
smaller
Chapter 18~19
Explain “Prions” term of three definition
- slow manifesting brain diseases
- scrapie in sheep, mad cow disease, creutzfeldt-jakob desease.
- No virion , No viral genome
Chapter 18~19
Antibody response with what disease ?
- Viral diseases
* New viral diseases
Chapter 18~19
Viral disease and New viral disease define explain
- Viral : small isolated population can emerge
- New: can emerge when viruses spread from animals to humans
Chapter 18~19
For “vitro sequencing” , use ddNs or ddNTPS ?
ddNTPS
Chapter 18~19
For “anti-virals” , use ddNs or ddNTPS ?
ddNs
Chapter 18~19
Anti-virals definition
Can cross the cell membrane, phosphorylated by intracellular enzymes.
Chapter 18~19
3’- dideoxies definition
used for Sanger sequencing
Chapter 18~19
Nucleoside RT ( NRTIs) definition
chain terminators becuase of a substitution at the 3’ postion, replacing 3’OH
Chapter 18~19
“Proviral “ definition
- Into to genome
- provirus resides in the host genome
- replicates along with chromosomal DNA every S phase.
Chapter 18~19
Rereoviruses
use reverse transcriptase to copy their RNA genome into DNA
Chapter 18~19
Proviral DNA
integrates into host chromosome ( akin to prophage DNA of temperate
Chapter 18~19
What is HIV1 ?
The retrovirus that cause AIDS
