Use the Following Information to Answer the Questions Below

question 60

Multiple Choice

Use the following information to answer the questions below.
A student is looking through his light microscope (~450 X) at a squashed and stained onion root tip. Some, but not all, of the cells have clearly visible chromosome strands.
-When the cell has just completed telophase, which of the following does he see?

• A) a clear area in the center of the cell
• B) chromosomes clustered at the poles
• C) individual chromatids separating
• D) formation of vesicles at the midline
• E) two small cells with chromatin

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Definitions:

Contrast Sensitivity

A measure of the ability to distinguish differences between light and dark areas in a visual scene, important for tasks such as night driving and reading.

Visual Acuity

The clarity or sharpness of vision, typically measured by the ability to discern letters or numbers at a standardized distance.

Irrigation

The artificial application of water to land or soil to assist in the growing of agricultural crops or the maintenance of landscapes.

Achromatic Vision

A condition characterized by a limited ability to see colors, often referred to as color blindness.