Which statements about viruses are true?Select the four statements that are true.
- HIV contains reverse transcriptase.
- Enveloped viruses bud from the host cell.
- The capsid enters the host cell if the virus is enveloped.
- A retrovirus contains RNA.
The pointer is indicating the virus's _____.
Viral DNA makes mRNA by the process of _____.
The lytic cycle of bacteriophage infection ends with the _____.
rupture of the bacterium
The pointer is indicating the _____.
viral protein coat
As a result of the lytic cycle, _____.
the host cell's DNA is destroyed
In the lysogenic cycle _____.
viral DNA is replicated along with host DNA
Cycle A is the _____ cycle and cycle B is the _____ cycle.
lytic ... lysogenic
The genetic material of HIV consists of _____.
Which of these binds to receptor molecules on the host cell membrane?
What is the function of reverse transcriptase?
It catalyzes the formation of DNA from an RNA template.
What is the source of a viral envelope?
host cell membrane
Which of these is reverse transcriptase?
Which of these is the viral genome?
Double-stranded viral DNA is incorporated into a host cell as a _____.
How does HIV cause disease?
HIV kills cells that defend the body against disease.
How do enveloped viruses differ from nonenveloped viruses?
They have a membrane-like outer covering.
Which replicative cycle describes a virus that can integrate its genome into the host cell's genome?
Which enzyme inserts viral DNA into the host's chromosomal DNA?
How does HIV bind to a host cell?
The viral envelope proteins interact with CD4 and a co-receptor on the cell membrane.
Which of the following events stimulates the production of viral particles in a host cell?
Activation of the host cell by cytokines, growth factors, or antigens.
True or false? The human immunodeficiency virus (HIV) uses reverse transcriptase to make double-stranded RNA copies of its DNA