Match the following events that occur in their respective phases of cell cycle and select the correct option:
`{:(1.,G_(1)" phase","(i)","Cell grows and organelle duplication"),(2.,"S phase","(ii)","DNA replication and chromosome duplication"),(3.,G_(2)" phase","(iii)","Cytoplasmic growth"),(4.,"Metaphase in M-phase","(iv)","Alignment of chromosomes"):}`

Options

A. (iii), (iv), (i), (ii)
B. (iv), (i), (ii), (iii)
C. (i), (ii), (iii), (iv)
D. (ii), (iii), (iv), (i)

Answer

To solve the question of matching the events that occur in their respective phases of the cell cycle, we will analyze each phase and its corresponding event step by step.

### Step 1: Analyze the G1 Phase
- **G1 Phase**: This is the first gap phase where the cell grows and duplicates its organelles.
- **Matching Event**: Cell grows and organelle duplication.
- **Match**: (1) G1 phase → (i) Cell grows and organelle duplication.

### Step 2: Analyze the S Phase
- **S Phase**: This phase is characterized by DNA replication. The cell duplicates its chromosomes, effectively doubling its DNA content.
- **Matching Event**: DNA replication and chromosome duplication.
- **Match**: (2) S phase → (ii) DNA replication and chromosome duplication.

### Step 3: Analyze the G2 Phase
- **G2 Phase**: This is the second gap phase where the cell continues to grow and prepares for mitosis. During this phase, there is significant cytoplasmic growth, and proteins and RNA are synthesized.
- **Matching Event**: Cytoplasmic growth.
- **Match**: (3) G2 phase → (iii) Cytoplasmic growth.

### Step 4: Analyze Metaphase in M Phase
- **Metaphase in M Phase**: During metaphase, chromosomes align at the cell's equator, preparing for separation.
- **Matching Event**: Alignment of chromosomes.
- **Match**: (4) Metaphase in M-phase → (iv) Alignment of chromosomes.

### Final Matches
Now we can summarize the matches:
1. G1 phase → (i) Cell grows and organelle duplication
2. S phase → (ii) DNA replication and chromosome duplication
3. G2 phase → (iii) Cytoplasmic growth
4. Metaphase in M-phase → (iv) Alignment of chromosomes

### Conclusion
The correct option that matches these events is:
- (1) G1 phase → (i)
- (2) S phase → (ii)
- (3) G2 phase → (iii)
- (4) Metaphase in M-phase → (iv)