Assertion : Cross pollination in true genetic sense within species is called xenogamy.
Reason: When there is cross pollination, resultant hybrid is a combination of characters of two plants.

Options

A. If both Assertion and Reason are true and Reason is corret explanation of Assertion
B. If both Assertion and Reason are true and Reason is not corret explanation of Assertion
C. If Assertion is true but Reason is false
D. If both Assertion and Reason are false

Answer

To analyze the given statements about cross-pollination, we will break down the assertion and reason step by step.

### Step 1: Understanding the Assertion
The assertion states that "Cross pollination in true genetic sense within species is called xenogamy."
- **Explanation**: Cross-pollination refers to the transfer of pollen grains from the anther of one flower to the stigma of another flower, which can be within the same species or between different species. When this occurs within the same species, it is indeed referred to as xenogamy.

### Step 2: Understanding the Reason
The reason states that "When there is cross pollination, the resultant hybrid is a combination of characters of two plants."
- **Explanation**: When cross-pollination occurs, the pollen from one plant fertilizes the ovule of another plant. This results in a hybrid offspring that possesses genetic material from both parent plants, leading to a combination of their traits.

### Step 3: Evaluating the Relationship Between Assertion and Reason
Now, we need to evaluate if the reason provided supports the assertion.
- The assertion correctly defines xenogamy as cross-pollination within the same species. The reason explains the outcome of cross-pollination, which is the creation of a hybrid with traits from both parent plants.
- Since the reason explains the significance and outcome of the process described in the assertion, it serves as a justification for the assertion.

### Conclusion
Both the assertion and reason are true, and the reason correctly explains the assertion. Therefore, the correct answer is:
- **Option A**: If both assertion and reason are true, and reason is the correct explanation of assertion.

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