Question

Two statements, Assertion and Reason are given. Choose the correct option from the following.
Assertion: In the secondary structure of RNA, double helix structure is formed.
Reason: In the double structure of RNA, two nucleic acid chains are wound about each other and held together by hydrogen bonds between pairs of bases.

• A. ssertion is correct but Reason is incorrect.
• B. Both Assertion and Reason are correct and Reason is the correct explanation for Assertion.
• C. Assertion is incorrect but Reason is correct.
• D. Both Assertion and Reason are correct but Reason is not the correct explanation for Assertion.

Hint:

When answering Assertion-Reason type questions, remember that the reason should explain the assertion in the context of the topic. In this case, the double helix is primarily associated with DNA, not RNA.

Answer 1

The Correct Option is A

The assertion is correct because RNA typically does adopt secondary structures such as the double-stranded forms, albeit in some cases, it's single-stranded with specific regions that form helices. However, the reason is incorrect. RNA does not typically form a double helix like DNA. While RNA may have some double-stranded structures in certain conditions, it usually forms a single helix. DNA, not RNA, is the structure that typically forms a double helix.
Thus, the assertion is correct, but the reason is incorrect.