Why Does It Make Sense That Cells Would Respond to the Presence

question 4

Multiple Choice

Why does it make sense that cells would respond to the presence of dsRNAs with a mechanism such as RNAi?

• A)dsRNAs are not produced by the cell's normal genetic activities.
• B)dsRNAs are produced by the cell's normal genetic activities.
• C)dsRNAs adversely affect mitochondria.
• D)dsRNAs could cause degradation of nuclear DNA.
• E)dsRNAs have a very abnormal interaction with proteins.

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Definitions:

Lateral Inhibition

A process in the nervous system where an excited neuron reduces the activity of its neighbors, sharpening sensory perception.

Brightness Contrast

The difference in light intensity between two adjacent areas, making one appear brighter than the other.

Mach Bands

An optical illusion where the contrast at the edges of adjacent light and dark areas appears exaggerated.

Contrast Effects

A phenomenon in psychology where the evaluation of something is influenced by comparisons with recently encountered contrasting objects or people.