Which of the following statements is INCORRECT regarding DNA?
Show answer & explanation
Correct answer: A
Explanation
The correct answer is Option 1 i.e. The bases found in DNA come in only three varieties: adenine, cytosine and guanine.
This statement is incorrect because DNA contains four nitrogenous bases, not three: adenine (A), thymine (T), cytosine (C), and guanine (G). These bases pair specifically (A with T, and C with G) to form the rungs of the DNA double helix. The rest of the options accurately describe the structure and function of DNA