Question

(note: the images below are actual footage of cells in an onion root tip undergoing the cell cycle.) the phase illustrated by #7 in the image below shows the beginning stages of ____________. image of onion root tip cells options: metaphase, telophase, anaphase, prophase. rewatch

Explanation:

In the cell cycle, metaphase is the stage where chromosomes align at the cell's equatorial plate. The cell in image #7 shows chromosomes arranged in a line (the equator - like position), which is characteristic of the beginning of metaphase. Prophase involves chromosome condensation and nuclear envelope breakdown, anaphase is when chromosomes separate, and telophase is for nuclear re - formation and cytokinesis start. So the phase shown by #7 is the beginning of metaphase.

Answer:

metaphase (with the checkbox selected for metaphase)