Which of the following statement is not true about somatic embryogenesis

Options

A. The pattern of development of a somatic embryo is comparable to that of zygotic embryo
B. Somatic embryos can devlop from microspores
C. Somatic embryo is induced usually by an auxin such as 2,4-D
D. A somatic embryo develops from a somatic cell

Answer

To determine which statement is not true about somatic embryogenesis, we will analyze each option step by step.

### Step-by-Step Solution:

1. **Understanding Somatic Embryogenesis**:
- Somatic embryogenesis is an artificial process where an embryo is formed from a single somatic cell, rather than from a zygote. This process is significant in plant tissue culture and genetic engineering.

2. **Analyzing Option 1**:
- **Statement**: "The pattern of development of a somatic embryo is comparable to that of a zygotic embryo."
- **Evaluation**: This statement is true. The development of somatic embryos follows a pattern similar to that of zygotic embryos, as both undergo similar developmental stages.

3. **Analyzing Option 2**:
- **Statement**: "Somatic embryos can develop from microspores."
- **Evaluation**: This statement is not true. Microspores are haploid cells and do not give rise to somatic embryos. Somatic embryos are derived from diploid somatic cells, not haploid microspores.

4. **Analyzing Option 3**:
- **Statement**: "Somatic embryo is induced usually by an auxin such as 2,4-D."
- **Evaluation**: This statement is true. Somatic embryogenesis is often induced by high concentrations of auxins, such as 2,4-D, which promote the development of embryos from somatic cells.

5. **Analyzing Option 4**:
- **Statement**: "A somatic embryo develops from a somatic cell."
- **Evaluation**: This statement is true. Somatic embryos are indeed derived from somatic cells, which is the defining characteristic of somatic embryogenesis.

### Conclusion:
After evaluating all the options, we find that **Option 2** ("Somatic embryos can develop from microspores") is the statement that is not true about somatic embryogenesis.

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