Question

Examine the image below, and pay special attention to the phase circled and indicated by the black arrow. In 2-3 sentences, identify the circled phase and explain why this phase is necessary for the remainder of the cycle to occur correctly. Grading Considerations: Your answer must include: 2-3 complete sentences The correct name of the phase indicated by the arrow An explanation of why this phase is necessary Answers longer than 4 sentences will not be considered. Answering concisely and to the point is evidence of your understanding of the topic. (2 points)


the circled area is cell duplication

Answer 1

The circled phase indicated by the black arrow is the S phase (synthesis phase) of the cell cycle. This phase is crucial because it is during the S phase that DNA is accurately duplicated, ensuring that each daughter cell will receive an identical set of genetic material. Without this critical step, the cell division (mitosis) that follows would result in cells with incomplete or incorrect DNA, jeopardizing cellular function and integrity.