Which of the following is true of viruses? (2 points) They must use a host cell's metabolic enzymes and pathways to obtain energy.
They must use a host cell's ribosomes to synthesize proteins.
They must use a host cell's nucleotides for transcription and translation.

I and II only

I, II, and III

II and III only

III only

2.
Scientists construct an experimental bacteriophage that is composed of the T2 phage protein coat and T3 phage DNA. If a bacterium is infected by this phage, the new phages produced would be expected to have (2 points)

T2 protein and T3 DNA

T2 protein and T2 DNA

T3 protein and T3 DNA

T3 protein and T2 DNA

3.
In what viral reproductive cycle does the virus kill the host cell in which it is replicating? (2 points)

endocytic

lysogenic

lytic

phagocytic

4.
Why is it ineffective to treat a viral disease with antibiotics? (2 points)
Pathogenic RNA viruses have a high rate of mutation, quickly developing antibiotic resistance.
Excessive antibiotic use has resulted in most viruses evolving to be insensitive to antibiotic treatments.
Antibiotics inhibit enzymes specific to bacteria and have no effect on the enzymes encoded by viruses.

I and II only

II only

II and III only

III only
5
.
A plant raised in a sterile environment shows symptoms of a viral infection. Which of the following statements is the best explanation of this? (2 points)

The viral infection was acquired by the environment.

The viral infection was inherited from a parent.

The viral infection was developed by a mutation in the plant's genes.

The viral infection was picked up by horizontal transmission.

and after water is usually warmed by the sun the water temperature raises and then evaporates .

i believe the correct answer is the virus gets an envelope that contains host molecules when it leaves the host cell.

explanation:

during the bidding/release stage of a virus, it encapsulates itself with part of the membrane of the host cells in this case the cells of the monkey and is the reason as to why the scientist found the genetic material of the monkey on the viral cell surface.

further explanation

to understand this answer, we have to know the cycle a virus undergoes to replicate. a virus is basically a bunch of genetic material enclosed in a capsule and lacks any machinery or organelles to ensure their survival so they must enter a host cell in order to get the environment needed to survive. some viruses enter and lyse(destroy) the host cell after they have replicated and undergo the lytic cycle while some enter and leave the cell intact after replicating and these undergo a lysogenic cycle. to enter the cell, they undergo the first process called attachment by binding to specific receptors and co-receptors on the surface of the host cell. after attaching to the cell, they start the second phase called penetration where virus enters or is engulfed whole by the host cell through a process called endocytosis. it is the same process that a cell takes up materials it needs or pathogens around it. uncoating of the virus then happens after the virus has been engulfed and is the third stage. the virus then undergoes releasing of its genetic material in the host's matrix.   the materials then enter the nucleus and undergo biosynthesis by adding themselves in strands of rna being translated and then copies of the virus are produced in addition to the host genetic material. the material/newly formed viral material then undergoes assembly inside the host cell and form a capsule around them. the virus undergoes the last release/budding stage by binding to the host membrane and pushing outwards. in doing so when they tear away from the host membrane, they pick up the genetic material from the membrane of the host cell to form their envelope.

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level: high school

this would be called india