Which of the following are the product of single parent?
(I) Clone (II) Pure line
(III) Hybrid (IV) Inbred line

Options

A. Only I & II are correct
B. I, II & IV are correct
C. II, III & IV are correct
D. Only IV is correct

Answer

To determine which of the following are products of a single parent, we will analyze each option provided in the question: Clone, Pure line, Hybrid, and Inbred line.

### Step-by-Step Solution:

1. **Understanding Clones**:
- A clone is produced from a single parent organism. It is a group of genetically identical cells or organisms that arise from asexual reproduction.
- **Conclusion**: Clone is a product of a single parent.

2. **Understanding Pure Lines**:
- A pure line is derived from self-fertilization of a homozygous organism. This means that it is also the progeny of a single parent.
- **Conclusion**: Pure line is a product of a single parent.

3. **Understanding Hybrids**:
- A hybrid is the offspring resulting from the cross-breeding of two different subspecies or varieties. Therefore, it involves two parents.
- **Conclusion**: Hybrid is NOT a product of a single parent.

4. **Understanding Inbred Lines**:
- An inbred line is produced by repeated self-fertilization or mating of closely related individuals. This also results in offspring from a single parent.
- **Conclusion**: Inbred line is a product of a single parent.

### Final Answer:
Based on the analysis:
- The products of a single parent are:
- (I) Clone
- (II) Pure line
- (IV) Inbred line

Thus, the correct options are (I), (II), and (IV).