Match Column -I with column-II and select the CORRECT option from the codes given below .
`{:("Column - I","Column - II"),("(P) Autopolypoidy",(i)2n+1),("(Q) Trisomy",(ii)"AAAA"),("(R) Allopolyploidy",(iii) "AABB"),("(S) Nullisomy",(iv) 2n-2):}`

Options

A. P-(ii), Q-(i), R-(iii), S-(iv)
B. P-(iv), Q-(i), R-(ii), S-(iii)
C. P-(ii), Q-(iv), R-(iii), S-(i)
D. P-(ii), Q-(i), R-(iv), S-(iii)

Answer

To solve the matching question, we need to analyze each term in Column I and find its corresponding definition or description in Column II.

### Step-by-Step Solution:

1. **Identify Autopolyploidy (P)**:
- Autopolyploidy refers to a condition where an organism has multiple sets of chromosomes derived from the same species.
- In terms of chromosome number, if the diploid number is represented as "2n", then an autopolyploid would have "AAAA" which indicates multiple copies of the same chromosome set.
- **Match**: (P) Autopolyploidy → (ii) "AAAA"

2. **Identify Trisomy (Q)**:
- Trisomy is a genetic condition where an individual has three copies of a particular chromosome instead of the usual two.
- This can be represented as "2n + 1", where "n" is the haploid number.
- **Match**: (Q) Trisomy → (i) 2n + 1

3. **Identify Allopolyploidy (R)**:
- Allopolyploidy involves having multiple sets of chromosomes that are derived from different species.
- In terms of chromosome representation, if two different species contribute to the chromosome sets, it can be represented as "AABB".
- **Match**: (R) Allopolyploidy → (iii) "AABB"

4. **Identify Nullisomy (S)**:
- Nullisomy is a condition where both copies of a particular chromosome are missing.
- This can be represented as "2n - 2", indicating the loss of two chromosomes from the diploid set.
- **Match**: (S) Nullisomy → (iv) 2n - 2

### Final Matches:
- (P) Autopolyploidy → (ii) "AAAA"
- (Q) Trisomy → (i) 2n + 1
- (R) Allopolyploidy → (iii) "AABB"
- (S) Nullisomy → (iv) 2n - 2

### Conclusion:
The correct option based on the matches is:
- **Option 1**: P → ii, Q → i, R → iii, S → iv