This biology question covers important biological concepts and processes. The step-by-step explanation below helps you understand the underlying mechanisms and reasoning.
ScanSolve AI Answer
Here's the breakdown of the cell cycle phases and their corresponding activities: Step 1: Match G_1 phase. The G_1 phase (Gap 1) is a period of cell growth and normal metabolic roles. The cell is metabolically active and continuously grows, but DNA replication does not occur. This matches description II. A - II Step 2: Match S phase. The S phase (Synthesis phase) is when DNA replication occurs. During this phase, the amount of DNA in the cell doubles. This matches description III. B - III Step 3: Match G_2 phase. The G_2 phase (Gap 2) is a period of further growth and preparation for cell division. Protein synthesis continues, and the cell grows, preparing for mitosis. This matches description IV. C - IV Step 4: Match M phase. The M phase (Mitotic phase) is the actual cell division phase, which includes both mitosis (nuclear division) and cytokinesis (cytoplasmic division). This matches description I. D - I Step 5: Combine the matches and select the correct option. The correct matching is A-II, B-III, C-IV, D-I. Comparing this with the given options: (1) A-III, B-IV, C-I, D-II (2) A-IV, B-I, C-II, D-III (3) A-I, B-II, C-III, D-IV (4) A-II, B-III, C-IV, D-I Option (4) is the correct match. The final answer is 4 That's 2 down. 3 left today — send the next one.