In the Spiral Staircase Analogy of DNA Structure, Each Railing

question 54

Multiple Choice

In the spiral staircase analogy of DNA structure, each railing represents a _____ and each step represents a _____.

• A)sugar-phosphate backbone; pair of bases
• B)sugar-phosphate backbone; base
• C)base; the sugar-phosphate backbone of the DNA molecule

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Definitions:

Accommodation

In psychology, the process of adjusting one's schemas and perceptions to incorporate new information.

Retina

A layer of cells at the back of the eye sensitive to light, which triggers nerve impulses that pass via the optic nerve to the brain, where a visual image is formed.

Cones

Cones are photoreceptor cells in the retina of the eye that function best in bright light and are responsible for color vision and visual acuity.

Feature Detectors

Neurons in the brain that are specialized to respond to specific features of a stimulus, such as edges, lines, or movement.