Question

what is the most notable characteristic of the g₁ phase of an interphase cell?

Explanation:

To determine the most notable characteristic of the \( G_1 \) phase of interphase:

• Chromosome duplication occurs in the \( S \) phase, so the first option is incorrect.
• The \( G_1 \) phase is part of interphase, which is the stage before mitosis, and cells do prepare for mitosis during interphase (including \( G_1 \), \( S \), and \( G_2 \)), so the second option is incorrect.
• In the \( G_1 \) phase, the cell grows and manufactures cell organelles, which is a key activity during this phase.
• DNA polymerase binding to nitrogenous bases is related to DNA replication, which happens in the \( S \) phase, so the fourth option is incorrect.

Answer:

The cell is manufacturing cell organelles.