Let’s solve this step by step.
We are given a diagram of the cell cycle with labeled parts (A, B, C, D, E, F, G, H, H₁, H₂, H₃, H₄, a, b) and a legend that matches each label to its correct term.
Our job is to match each letter or symbol in the diagram to the correct name from the list — but since the legend already gives us the matching, we just need to verify and understand what each part represents based on standard biology knowledge.
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Step 1: Understand the big picture
The cell cycle has two main phases:
- Interphase (when the cell grows and copies DNA)
- M Phase (Mitosis + Cytokinesis — when the cell divides)
Interphase includes:
- G₁ phase → growth
- S phase → DNA synthesis (copying)
- G₂ phase → prep for division
M Phase includes:
- Mitosis (nuclear division): Prophase → Metaphase → Anaphase → Telophase
- Cytokinesis (cytoplasm splits)
Also:
- “Mother Cell” = original cell before dividing
- “Daughter Cells” = two new cells after division
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Step 2: Match labels using the legend
From the legend provided in the image:
→ A = The Cell Cycle (the whole circle)
→ B = Interphase (big outer arc covering most of the cycle)
→ C = M Phase (Cell Division) — the shaded wedge at top
→ D = G₁ Phase (first part of interphase)
→ E = S Phase (middle part of interphase — where DNA replicates)
→ F = G₂ Phase (last part of interphase, right before mitosis)
→ G = Cytokinesis (splitting of cytoplasm — shown as arrow pointing to daughter cells)
→ H = Mitosis (entire nuclear division process — includes H₁ to H₄)
→ H₁ = Prophase
→ H₂ = Metaphase
→ H₃ = Anaphase
→ H₄ = Telophase
→ a = Mother Cell (original cell at bottom left/right)
→ b = Daughter Cells (two small cells at top)
Wait — look again at the diagram:
At the bottom, there are two cells labeled “a” — those should be mother cells? But actually, in the diagram, the arrows show the cycle going from one cell → through division → into two daughter cells. So the cells at the bottom (“a”) are likely the starting point — so they’re mother cells. The two cells at the top (“b”) are the result — daughter cells.
But in the legend it says:
- Mother Cell ………… a
- Daughter Cells ……… b
That matches.
Also note: In the diagram, “B” points to the large curved arrow around the outside — which is Interphase. And “H” points to the inner section labeled with H₁–H₄ — which is Mitosis.
“C” points to the entire M Phase wedge (which includes both Mitosis and Cytokinesis).
“G” points to the actual splitting event — Cytokinesis.
“A” points to the center — representing the whole Cell Cycle.
All matches check out.
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Final Answer:
Based on the legend provided in the diagram, here is the correct matching:
- A → The Cell Cycle
- B → Interphase
- C → M Phase (Cell Division)
- D → G₁ Phase
- E → S Phase
- F → G₂ Phase
- G → Cytokinesis
- H → Mitosis
- H₁ → Prophase
- H₂ → Metaphase
- H₃ → Anaphase
- H₄ → Telophase
- a → Mother Cell
- b → Daughter Cells
This matches exactly what is written in the legend box below the diagram.
Parent Tip: Review the logic above to help your child master the concept of the cell cycle coloring worksheet.
