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There are seven characteristics to observe when describing a colony

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Answer:

Explanation:

When describing a bacterial colony, the following seven characteristics are commonly observed:

1. **Size**: The diameter of the colony, which can range from very small to very large. This helps in differentiating between different types of bacteria.

2. **Shape**: The overall form or contour of the colony, such as circular, irregular, filamentous, or rhizoid.

3. **Margin (Edge)**: The appearance of the edge of the colony, which may be smooth, irregular, wavy, or scalloped.

4. **Elevation**: The profile or height of the colony relative to the surface of the agar. This can be flat, raised, convex, umbonate (having a central bump), or crateriform (having a central depression).

5. **Texture**: The surface texture of the colony, which might be smooth, rough, wrinkled, or slimy.

6. **Color**: The color of the colony, which can be affected by pigments produced by the bacteria or the media. Colors can range from white, cream, yellow, red, or other hues.

7. **Transparency**: How much light passes through the colony. Colonies can be transparent, translucent, or opaque, which helps in differentiating species and understanding their growth characteristics.

These characteristics help in the identification and differentiation of bacterial species in microbiological studies.

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