The Normal Phenomenon of "Crossing Over" Occurs

question 47

Multiple Choice

The normal phenomenon of "crossing over" occurs:

• A) during meiosis I.
• B) during meiosis II.
• C) in both meiosis and mitosis.
• D) in both A and B.

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Definitions:

Ganglion Cells

Neurons located in the retina that receive visual information from photoreceptors via intermediate bipolar cells and transmit it to the brain through the optic nerve.

Optic Nerve

The nerve that transmits visual information from the retina to the brain.

Retina

The light-sensitive layer at the back of the eye that converts light into neural signals for visual recognition.

Lens

A transparent structure in the eye that focuses light that enters the eye onto the retina, enabling visual perception.