Match the columns and choose the correct answer
`{:((p),"Mitosis",(i),"Occurs in diploid cells only",),(,,(ii),"Occurs in both haploid and diploid cells",),((q),"Meiosis",(iii),"Daughter and parent cells have same chromosome number",),(,,(iv),"Synapsis of homologous chromosomes",):}`

Options

A. p-i, q-ii
B. p-ii, q-iii
C. p-iii, q-iv
D. p-iv, q-i

Answer

To solve the problem of matching the columns for Mitosis and Meiosis, we will analyze each option step by step.

### Step-by-Step Solution:

1. **Identify Mitosis (P)**:
- Mitosis is a type of cell division that results in two daughter cells that are genetically identical to the parent cell.
- It can occur in both haploid and diploid cells.

2. **Match Mitosis with Options**:
- **(i) Occurs in diploid cells only**: This is incorrect because mitosis can occur in both haploid and diploid cells.
- **(ii) Occurs in both haploid and diploid cells**: This is correct.
- **(iii) Daughter and parent cells have the same chromosome number**: This is also correct, as the chromosome number remains the same after mitosis.
- **(iv) Synapsis of homologous chromosomes**: This is incorrect for mitosis, as synapsis occurs during meiosis.

Therefore, Mitosis (P) matches with options (ii) and (iii).

3. **Identify Meiosis (Q)**:
- Meiosis is a type of cell division that reduces the chromosome number by half, resulting in four genetically diverse daughter cells.
- It involves synapsis of homologous chromosomes during the first division.

4. **Match Meiosis with Options**:
- **(i) Occurs in diploid cells only**: This is incorrect as meiosis can occur in diploid cells but also produces haploid cells.
- **(ii) Occurs in both haploid and diploid cells**: This is incorrect as meiosis primarily occurs in diploid cells to produce haploid gametes.
- **(iii) Daughter and parent cells have the same chromosome number**: This is incorrect, as meiosis reduces the chromosome number by half.
- **(iv) Synapsis of homologous chromosomes**: This is correct, as synapsis occurs during meiosis.

Therefore, Meiosis (Q) matches with option (iv).

### Final Matches:
- Mitosis (P) matches with (ii) and (iii).
- Meiosis (Q) matches with (iv).

### Conclusion:
The correct matches are:
- P (Mitosis) → (ii) and (iii)
- Q (Meiosis) → (iv)