learning catalytics retroviruses

prophage infects animal cells ture or false

false

prophage

bacteriophage and during the lysogenic phase integrates into the bacterial chromosome

can prophage go back through the lytic cycle causing the bacterial cell to burst

yes

provirus

Viral Dna that infects animal cells and INTEGRATES PERMANENTLY in this host chromosome H

example of provirus

HIV

what type of genome does HIV have

+ssRNA

Does HIV have an envelope or is it naked

enveloped

what pre packaged proteins does teh HIV virus bring with it

integrase

protease

reverse transcriptase

host cell RNA

what glycoprotein receptor on teh host cell aids in attachment of teh virus

CD4

what type of cell is. aCD4 cell

t helper cell

T cell

cell mediated immunity B cell

B cells

antibody mediated immunity

what method does the HIV virus enter the cell

membrane fusion

what happens with teh HIV +ssRNA after uncoating

reverse transcriptase enzyme copies to dsDNA

the integrase enzyme serves to cleave viral proteins T or F

false

integrase

enzyme allows the viral DNA to be integrated into the host human chromosome

the integrated viral DNA into the host chromosome is called a provirus t or f

true

what is the purpose of the protease enzyme

to cleave viral proteins into individual proteins

what step in the HIV life cycle is the virion considered infectious

release

is there treatment for HIV

yes

is there a cure for HIV

no

a cell is infected with a virus carrying an oncogene sequence in its genome. what process may occur if the oncogene is expressed in the infected cell

neoplasia

using laboratory animals is the preferred way to culture viruses

false