What are blastogenic variations? Give one example.

Explanation

### Step-by-Step Solution:

1. **Definition of Blastogenic Variations**:
- Blastogenic variations refer to small changes or variations that occur in the germ cells of an organism. Germ cells are the reproductive cells (gametes) that give rise to offspring.

2. **Characteristics of Blastogenic Variations**:
- These variations are inheritable, meaning they can be passed from parents to offspring. This is a crucial aspect as it distinguishes them from other types of variations that may not be inherited.

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