Most of the Life of a Normal Cell Is Spent

question 27

Multiple Choice

Most of the life of a normal cell is spent in which phase?

• A)G₁ phase (gap 1)
• B)S phase
• C)G₂ phase (gap 2)
• D)M phase

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Definitions:

Retina

A layer of cells at the back of the eye that senses light and converts it into neural signals, which are sent to the brain for visual recognition.

Fovea

A small depression in the retina of the eye where visual acuity is highest due to the concentration of cones.

Cones

Photoreceptor cells in the retina of the eye responsible for color vision and functioning best in relatively bright light.

Rods

Photoreceptor cells in the retina of the eye that are sensitive to low light levels and contribute to black-and-white vision.