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Question
Assertion(A): Restriction endonucleases function by 'inspecting' the length of a DNA sequence to find the specific recognition sequence.
Reason (R): The sequences recognised by endonucleases are typically 4-6 nucleotides long and are palindromes, also called palindromic nucleotide sequences.
Options
Both assertion (A) and reason (R) are true, and reason is the correct explanation of assertion.
Both assertion (A) and reason (R) are true, but reason is not the correct explanation of assertion.
Assertion (A) is true but reason (R) is false.
Both assertion (A) and reason (R) are false.
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Solution
Both assertion (A) and reason (R) are true, and reason is the correct explanation of assertion.
Explanation:
Restriction endonucleases inspect DNA to find their recognition sequences. These sequences are typically 4–6 nucleotides long and palindromic.
