Phases of the cell cycle Original Scenario-Based Download PDF

Questions

1. 1.

   A bio-engineer deploys microscopic nano-drones to observe cellular repair in an exotic bioluminescent reef organism. The miniature sensors detect that a target cell is actively synthesizing duplicate copies of its genomic DNA while simultaneously replicating its centrosome pair within an intact nucleus. Microscopic analysis confirms that transcription of histone proteins has peaked to package the emerging DNA strands, though the chromatin remains completely uncompacted. Which phase of the eukaryotic cell cycle are the nano-drones recording?

   • A) $G_1$ phase
   • B) S phase
   • C) $G_2$ phase
   • D) M phase