Question

during this phase of the cell cycle, the chromosomes are replicated. multiple choice prophase g₁ phase s phase cytokinesis g₂ phase

Explanation:

• Prophase: It is a stage of mitosis where chromosomes condense, but replication has already occurred before this stage.
• G₁ phase: This is the first gap phase of interphase. The cell grows and prepares for DNA replication but does not replicate chromosomes at this stage.
• S phase (Synthesis phase): During this phase of interphase, DNA replication occurs. As a result, chromosomes (which are made of DNA) are replicated. Each chromosome is copied to form sister chromatids joined at the centromere.
• Cytokinesis: This is the final stage of the cell cycle (after mitosis) where the cell physically divides into two daughter cells. Chromosome replication is not part of this process.
• G₂ phase: It is the second gap phase of interphase. The cell prepares for mitosis. Chromosome replication is already completed in the S phase before G₂.

Answer:

S phase