In Order for a Virus to Reproduce, It Must Insert

question 17

Multiple Choice

In order for a virus to reproduce, it must insert its DNA into the host cell's genome. How might this cause cancer in the host?

• A) The viral DNA could insert a gene that controls cell division into the host's DNA.
• B) Because the host cell is much smaller than the virus, the host cell must expand until it becomes a tumor large enough to hold the virus.
• C) The virus could turn off an oncogene.
• D) Viruses cannot cause cancer.

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Definitions:

Synaptic Cleft

The small gap between the presynaptic and postsynaptic neurons across which neurotransmitters are released to transmit signals.

Postsynaptic Cell

The neuron or cell that receives a signal (neurotransmitters) from another neuron at a synapse.

Neurotransmitter

Chemicals released by neurons at synapses, which transmit signals across a chemical synapse from one neuron to another neuron, muscle cell, or gland cell.

Inhibitory Local Potential

A type of synaptic potential that makes a postsynaptic neuron less likely to generate an action potential.