What is the generation of plants produced by the crossing of true breeding plants called ?

Options

A. `F_1`
B. `F_0`
C. `F_2`
D. `F_3`

Answer

To answer the question, "What is the generation of plants produced by the crossing of true breeding plants called?", we can follow these steps:

### Step-by-Step Solution:

1. **Understanding True Breeding Plants**: True breeding plants are those that, when self-fertilized, produce offspring that are identical to themselves in terms of specific traits. For example, a true breeding tall plant (TT) will only produce tall offspring, and a true breeding dwarf plant (tt) will only produce dwarf offspring.

2. **Crossing True Breeding Plants**: When we cross two true breeding plants, such as a tall plant (TT) and a dwarf plant (tt), we are combining their genetic material. This process is known as hybridization.

3. **Identifying the First Generation**: The offspring produced from this cross are referred to as the first filial generation, or F1 generation. In this case, all the F1 offspring will be heterozygous (Tt) and will express the dominant trait, which is tallness.

4. **Conclusion**: Therefore, the generation of plants produced by the crossing of true breeding plants is called the F1 generation.

### Final Answer:
The generation of plants produced by the crossing of true breeding plants is called the **F1 generation**.

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