Assertion:In eukaryotic chromosome,DNA is a long double stranded and linear.
Reason:The eukaryotic chromosome are composed of DNA ,protiens ,RNA ,metal ions and enzymes.

Options

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

Answer

**Step-by-Step Solution:**

1. **Understanding the Assertion**: The assertion states that in eukaryotic chromosomes, DNA is long, double-stranded, and linear. This is true. Eukaryotic DNA is indeed organized into linear chromosomes, which are structured as double-stranded helices.

2. **Understanding the Reason**: The reason provided states that eukaryotic chromosomes are composed of DNA, proteins, RNA, metal ions, and enzymes. This is also true. Eukaryotic chromosomes consist of DNA wrapped around histone proteins, along with other components such as RNA and various ions.

3. **Evaluating the Relationship**: While both the assertion and the reason are true, we need to determine if the reason correctly explains the assertion. The assertion describes the structure of DNA in eukaryotic chromosomes, while the reason describes the composition of eukaryotic chromosomes. The reason does not specifically explain why DNA is long, double-stranded, and linear.

4. **Conclusion**: Since both statements are true but the reason does not provide a correct explanation for the assertion, the correct answer is that both the assertion and reason are true, but the reason is not a correct explanation of the assertion.

**Final Answer**: The correct option is B: Both assertion and reason are true, but the reason is not a correct explanation of the assertion.

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