An androgenic plant can be converted into homozygous diploid plant through the application of

Options

A. Nitrogen mustard
B. Nitrous acid
C. Colchicine
D. Acridine orange.

Answer

To solve the question regarding how an androgenic plant can be converted into a homozygous diploid plant, we can follow these steps:

### Step 1: Understand the Terms
- **Androgenic Plant**: These are haploid plants produced through anther culture, which means they have only one set of chromosomes (N).
- **Homozygous Diploid Plant**: This refers to plants that have two identical alleles for a trait and two sets of chromosomes (2N).

### Step 2: Identify the Process
- The conversion of haploid androgenic plants to homozygous diploid plants involves manipulating the chromosome number.

### Step 3: Recognize the Role of Colchicine
- Colchicine is a chemical that is known to inhibit the separation of chromosomes during cell division. By applying colchicine, the normal process of meiosis can be disrupted.

### Step 4: Mechanism of Action
- When colchicine is applied, it prevents the segregation of chromosomes during cell division. As a result, some cells end up with double the number of chromosomes (2N), leading to the formation of homozygous diploid plants.

### Step 5: Conclusion
- Therefore, the correct answer to the question is **C. Colchicine**.

### Final Answer:
The androgenic plant can be converted into a homozygous diploid plant through the application of **C. Colchicine**.

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