Questions: In an actively dividing eukaryotic cell, the G1, S, and G2 phases collectively constitute the .
Transcript text: In an actively dividing eukaryotic cell, the $\mathrm{G}_{1}, \mathrm{~S}$, and $\mathrm{G}_{2}$ phases collectively constitute the $\square$ .
Solution
In an actively dividing eukaryotic cell, the $\mathrm{G}_{1}, \mathrm{~S}$, and $\mathrm{G}_{2}$ phases collectively constitute the interphase.
Explanation:
The cell cycle consists of several phases, including interphase and the mitotic phase (M phase).
Interphase is the period during which the cell grows and replicates its DNA in preparation for mitosis.
Interphase is subdivided into three phases: $\mathrm{G}_{1}$ (first gap phase), $\mathrm{~S}$ (synthesis phase), and $\mathrm{G}_{2}$ (second gap phase).
During $\mathrm{G}_{1}$, the cell grows and performs its normal functions.
During $\mathrm{~S}$, DNA replication occurs.
During $\mathrm{G}_{2}$, the cell continues to grow and prepares for mitosis.
Therefore, the correct term to fill in the blank is "interphase."