Select the incorrect statement w.r.t. ecotypes

Options

A. They are different from each other on the basis of morphological and physiological characters
B. They are interfertile
C. They are genetically similar
D. There may be several ecotypes of the same organism

Answer

To solve the question regarding ecotypes and select the incorrect statement, we will follow these steps:

### Step 1: Understand the Definition of Ecotypes
Ecotypes, also referred to as eco species or eco spaces, are genetically distinct populations of the same species that have adapted to specific environmental conditions in different geographic areas.

**Hint:** Remember that ecotypes are defined by their genetic distinctiveness and adaptation to specific environments.

### Step 2: Analyze the Options
We need to evaluate each option provided in the question to determine which statement is incorrect regarding ecotypes.

1. **Option 1:** They are different from each other on the basis of morphological and physiological characters.
- This statement is true as ecotypes can exhibit variations in morphology and physiology due to adaptation to different environments.

2. **Option 2:** There may be several ecotypes of the same organism.
- This statement is also true. A single species can have multiple ecotypes adapted to various environmental conditions.

3. **Option 3:** They are genetically similar.
- This statement is incorrect. Ecotypes are genetically distinct from one another, which means they are not genetically similar.

4. **Option 4:** Some ecotypes are infertile.
- This statement can be true. Some ecotypes may not be able to reproduce with others, leading to infertility in certain cases.

### Step 3: Identify the Incorrect Statement
From the analysis of the options, we find that:
- Option 3 is the incorrect statement because ecotypes are not genetically similar; they are genetically distinct.

**Final Answer:** The incorrect statement with respect to ecotypes is **Option 3**: "They are genetically similar."