Select the correct statement among the following.

Options

A. Human female possesses homomorphic sex chromosomes.
B. Males possess homogametic sex chromosomes in humans.
C. Human females possess heterogametic sex chromosomes.
D. Human male possesses homomorphic sex chromosomes.

Explanation

To solve the question, we need to analyze each of the provided statements about human sex chromosomes and determine which one is correct. Here’s a step-by-step breakdown:

### Step 1: Understand the Terms
- **Homomorphic Sex Chromosomes**: These are chromosomes that are similar in shape and size. In terms of gametes, it means that both gametes produced are the same type.
- **Heterogametic Sex Chromosomes**: These are chromosomes that are different in shape and size, leading to different types of gametes.

### Step 2: Analyze Each Statement
1. **Statement 1**: "Human female possesses homomorphic sex chromosomes."
- Human females have two X chromosomes (XX), which are the same. Therefore, they produce only one type of gamete (X). This statement is **correct**.

2. **Statement 2**: "Male possesses homo-gametic sex chromosomes in humans."
- Human males have one X and one Y chromosome (XY), which means they produce two different types of gametes (X and Y). This statement is **incorrect**.

3. **Statement 3**: "Human female possesses heterogametic sex chromosomes."
- Since females have two X chromosomes (XX), they are not heterogametic. This statement is **incorrect**.

4. **Statement 4**: "Human male possesses homomorphic sex chromosomes."
- Males have one X and one Y chromosome (XY), which are different. Therefore, they are not homomorphic. This statement is **incorrect**.

### Step 3: Conclusion
After analyzing all the statements, the only correct statement is:
- **Statement 1**: "Human female possesses homomorphic sex chromosomes."

### Final Answer
The correct statement is **Statement 1**.

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