Match column I with column II and select the correct option from the given codes
`{:(,"Column I",,"Column II"),("A.","Dihybrid test cross","(i)",9:3:3:1),("B.","Law of segregation","(ii)","Dihybrid cross"),("C.","Lawof independent assortment","(iii)",1:1:1:1),("D.","ABO blood group in man","(iv)","Purity of gametes"),(,,"(v)","Multiple allelism"):}`

Options

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

Answer

To solve the matching question between Column I and Column II, we will analyze each item in Column I and find the appropriate match in Column II based on the principles of inheritance and variation.

### Step-by-Step Solution:

1. **Match A: Dihybrid test cross**
- A dihybrid test cross involves crossing an individual with a heterozygous genotype (e.g., AaBb) with a homozygous recessive individual (e.g., aabb).
- The expected phenotypic ratio from a dihybrid test cross is 1:1:1:1.
- **Match:** A → (iii) 1:1:1:1

2. **Match B: Law of segregation**
- The Law of Segregation states that during gamete formation, the alleles for a trait segregate from each other so that each gamete carries only one allele for each gene.
- This concept is often referred to as the purity of gametes.
- **Match:** B → (iv) Purity of gametes

3. **Match C: Law of independent assortment**
- The Law of Independent Assortment states that alleles of different genes assort independently of one another during gamete formation.
- In a dihybrid cross, this results in a phenotypic ratio of 9:3:3:1.
- **Match:** C → (ii) Dihybrid cross

4. **Match D: ABO blood group in man**
- The ABO blood group system is an example of multiple allelism, where there are three alleles (IA, IB, and IO) that determine the blood type.
- This system also exhibits co-dominance between IA and IB.
- **Match:** D → (v) Multiple allelism

### Final Matching:
- A → (iii) 1:1:1:1
- B → (iv) Purity of gametes
- C → (ii) Dihybrid cross
- D → (v) Multiple allelism

### Conclusion:
The correct matches are:
- A - (iii)
- B - (iv)
- C - (ii)
- D - (v)