Assertion :- XO type, XY type & ZW type are the example of male heterogamety.
Reason :- Male produces two types of sperms.

Options

A. If both Assertion & Reason are True & the Reason is a correct explanation of the Assertion.
B. If both Assertion & Reason are trur but Reason is not a correct explanation of the Assertion.
C. If Assertion is True but the Reason is Flase.
D. If both Assertion & Reason are false.

Answer

To solve the question, we need to analyze both the assertion and the reason provided.

### Step-by-Step Solution:

1. **Understanding the Assertion**:
- The assertion states that "XO type, XY type & ZW type are examples of male heterogamety."
- Male heterogamety refers to a situation where males produce two different types of gametes (sperms) with different sex chromosomes.
- In the XO system (e.g., grasshoppers), males have one X chromosome (XO) and females have two (XX). This is indeed an example of male heterogamety.
- In the XY system (e.g., humans), males have one X and one Y chromosome (XY), while females have two X chromosomes (XX). This is also an example of male heterogamety.
- However, in the ZW system (e.g., birds), males are ZZ and females are ZW. Here, males do not exhibit heterogamety; instead, females do.
- Therefore, the assertion is **partially correct** because it correctly identifies XO and XY as examples of male heterogamety but incorrectly includes ZW.

2. **Understanding the Reason**:
- The reason states that "Male produces two types of sperms."
- This is true for both the XO and XY systems, where males produce two types of gametes (sperms) - one with X and one with Y in XY, and one with X in XO.
- However, the assertion's inclusion of ZW complicates the reasoning, as males in the ZW system do not produce two types of gametes.

3. **Conclusion**:
- Since the assertion is not entirely correct (due to the inclusion of ZW), and while the reason is true for some systems, it does not fully support the assertion.
- Thus, both the assertion and the reason are **incorrect** in the context provided.

### Final Answer:
Both the assertion and the reason are incorrect.

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